Answer: (c) 80° Which instrument is used to measure or construct angles? Question 16. (b) 45° Can an acute angle be adjacent to an obtuse angle? (c) If one of the angles is right, then other angle of a linear pair is also right. (b) 50°, 130° (d) None of these. (c) right (c) x = 30 (xii) Corresponding angles are on the ……….. side of the transversal. Name two acute vertical angles. (a) 45° Students can access the NCERT MCQ Questions for Class 7 Maths Chapter 5 Lines and Angles Pdf free download aids in your exam preparation and you can get a good hold of the chapter. Answer: (c) None of these Question 22. 18. 14. (c) 10° as sum of linear pair is 180°, and obtuse angle 180°>90° that's why it can't. (b) 30° (b) supplementary (Why?) Measure of the supplement of 0° : (b) Two obtuse angles can form a linear pair (c) Two right angles can form a linear pair (d) One obtuse angle and one acute angle cannot form a linear pair. Solution: No, two acute angles cannot form a pair of supplementary angles. 108. If two lines are intersected by a transversal, then the number of pairs of interior angles on the same side of transversal is Can two obtuse angles form a linear pair ? (c) Both of the angles forming a linear pair can be obtuse angles. Example 2: the angles form a line (linear pair) therefore they are supplementary Example 3: the angles can be non-adjacent as long as their sum is 180° 110°+ 70° = 180° The sum is 180° therefore they are supplementary. (a) x = 50° Answer: (a) 70+ 20 (a) 20° (c) (a, c) and (viii)Angles formed by two intersecting lines having no common arms are called ……….. Question 29. (c) Parallel lines A pair of supplementary angles is Hence, ∠ x and ∠ y forms a linear pair (i) ∠AOC and ∠COE form a pair of ……….. angles. (a) 65°, 115° (d) x = 25 (b) x = 35 (a) 2 Yes Are ∠1, ∠2 a linear pair? (c) 90° (d) Set squares, Question 24. Answer: (a) 180° Name a pair of adjacent angles. Complementary to 95° angle is : (d) 90°, Question 23. 3. (b) 180° State whether the following statements are true (T) or false (F): Answer: (b) 180° (180°, 5°) pair of angle is given : Answer: (b) 30°, 150° Lines AB and CD are intersecting each other. D. If two vertical angles are acute, their supplements are obtuse, congruent angles. 5.2.4 Linear Pair A linear pair is a pair of adjacent angles whose non-common sides are opposite rays. Answer: (a) 90° (iii) ∠AOC is ………… of ∠COD. (xiv) If two lines are cut by a transversal such that a pair of corresponding angles are not equal, then the lines are ……….. Two lines intersect and the vertically opposite angles so formed are ………………. (c) No relation. Question 8. Explanation: A linear pair of angles is formed when two lines intersect. (d) None of these. Answer: (a) 20° (b) 15° Solution: Question 3. They do not form a straight line. Observe the figure and fill in the following blanks: What are the lines which lie on the same plane and do not intersect at any point called? A Linear Pair Forms A Straight Angle Which Contains 180º, So You Have 2 Angles Whose Measures Add To 180, Which Means They Are Supplementary. right angles theorem. Question 6. (c) 25°, 75° (vi) 30° is one-half of its complement. The measure of an angle is three times the measurement of its complement. The sum of the measures of two angles is 90°, the angles are called ………….. angles. (b) 95° None of these, as sum of complementary angles is 90°. (vii) If two lines are cut by a transversal, If one angle of a linear pair is acute, then the other angle is 13. (b) Two obtuse angles can form a linear pair (c) Two right angles can form a linear pair (d) One obtuse angle and one acute angle cannot form a linear pair. Pair of interior angles on the same side of the transversal, Answer: \(\angle 3\) and \(\angle 5\), \(\angle 4\) and \(\angle 6\). (vi) Angles of a linear pair are as well as ……….. When the intersecting lines are perpendicular, each linear pair will be right angled. (c) Corresponding angles 7. Linear pairs of angles are adjacent and are supplementary, that's they add upto 180°. (b) x = 60° Question 14. (c) x = 70 an angle with measure equal to 90. (a) supplementary Solution: Question 9. Answer: true. (d) straight (d) 40°, 50° Question 2. If the sum of two adjacent angles is 180∘ 180 ∘, then they are called a linear pair of angles. Two angles form a linear pair. vertical angles theorem. Question 12. Pairs of corresponding angles, Answer: \(\angle 1\) and \(\angle 5\), \(\angle 2\) and \(\angle 6\), \(\angle 3\) and \(\angle 7\), \(\angle 4\) and \(\angle 8\), Question 4. In the given value of x is : Identify which of the following pairs of angles are supplementary. Sum of complementary angles is 90°. (d) 50° (d) None of these. Name a linear pair. (d) None of these, Question 34. (i) Fig 5.11 (ii) (d) Collinear lines, Question 15. (b) vertically opposite angles Find the angle, which is equal to its supplement. Are ∠1, ∠2 a linear pair? (b) 55° What do we call an angle whose measurement is exactly equal to 0°? (vii) Adjacent angles have a common vertex, a common ……….. and no common ……… What is the measure of the complement of 65°? (a) 45°, 45° Solution: Question 7. (b) A straight angle Question 27. (c) 45° – 145° Moreover, if there is one common line for two angles, then it is known as “angle pairs”. 5. (xiii) Alternate interior angles are on the ………… side of the transversal. Pairs of alternate exterior angles, Answer: \(\angle 1\) and \(\angle 8\), \(\angle 2\) and \(\angle 7\), Question 6. Answer: false. Solution: Question 10. (c) 60°, 120° How many rays can be drawn from a given point? (v) Pair of vertically opposite angles are always supplementary. One acute and one obtuse angle can be supplementary. 4. Solution: Question 2. (ii) ∠AOC and ∠COB are ……….. angles. Solution: No, two acute angles cannot form a linear pair because their sum is always less than 180 o. 3. (b) 30° Question 1. 12. (c) unequal (a) 55° (c) 360° ... if two angles form a linear pair, then the two angles are supplementary. (Why?) (d) 30°, Question 28. (d) None of these. Two angles forming a linear pair are ……………. The pairs of angles are nothing but the two angles. (i) Two obtuse angles can be supplementary. Question 25. The measure of one angle is 8 times the measure of the other angle. The measure of one angle is 15 less than half the measurement of its supplement. a. (iv) ∠BOE is …………. (c) A zero angle Can two right angles forms a linear pair ? sometimes. Measure of the supplement of 55° : Solution: Question 8. (a) 90° If ∠APQ = 50° and ∠PRD = 130°, then ∠QPR is However, just because two angles are supplementary does not mean they form a linear pair. E. The last statement of a proof should be the statement of what you are trying to prove. Explore numerous MCQ Questions of Lines and Angles Class 7 with answers provided with detailed solutions by looking below. (d) 30°, Question 17. What happens to the measurement of an angle after the extension of its arms? (c) None of these. https://www.answers.com/Q/Can_two_obtuse_angles_form_a_linear_pair Question 14. (a) (a, d) (a) 135° If you have any other queries regarding CBSE Class 7 Maths Lines and Angles MCQs Multiple Choice Questions with Answers, feel free to reach us via the comment section and we will guide you with the possible solution. A line that intersects two or more lines at distinct points is called Solution: Question 13. Question 18. (c) 40° (c) 35° Solution: Question 14. Question 1. (a) 5° (a) 45° Right angle. (a) Doubles (a) 55°, 115° (c) 65° (b) 55° Can 2 Adjacent Angle Be Complementary? (c) 85° Question 6. Two angles in a linear pair are adjacent to each other. Answer: (d) None of these Identify supplementary pair of angles : Answer: (a) \( l \parallel m \) (c) 0 + 95 The other two pairs of angles are adjacent but they do not form a linear pair. What is a pair angle? Vertically opposite angles are equal. (c) none of these. (a) 40° Intersecting lines form linear pair of angles. Question 31. 3 is a right angle II. Answer: (d) Explanation : Solution: Question 2. If an angle is one-third of its supplement, then the measure of the angle is Can two right angles form a linear pair? (d) None of these. Two lines are parallel if alternating angles are equal. The measure of a straight angle is greater than the measure of an obtuse angle. (d) 150° Answer: true. If ED AC , what conclusions can be reached in one or more steps? (d) None of these. Name a linear pair. (d) None of these. (a) An obtuse angle (d) A right angle, Question 13. Sum of linear pair is 180°. The figure shows the design on an outdoor fence. Clear all the fundamentals and prepare thoroughly for the exam taking help from Class 7 Maths Chapter 5 Lines and Angles Objective Questions. 25. If two lines are parallel then corresponding angles are equal. (b) Triples What is the measure of the complement of 41°? So, x + 65 o = 180 o. x = 180 o – 65 o. x = 115 o (b) 50° If the sum of two adjacent angles is 180∘ 180 ∘, then the non-common arms form a line. (ix) If two lines intersect and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are …….. (iv) Two adjacent angles always form a linear pair. (c) 112°, 68° (b) 47°, 133° (iv) Two adjacent angles always form a linear pair. (b) Intersecting lines No! (a) x = 40 Find the value of x in the given figure if lines \( p \parallel q \) : (v) Can two obtuse angles be adjacent? (c) 135° Question 3. (d) A reflex angle, Question 20. Question 5. Use MCQ Questions for Class 7 Maths with Answers during preparation and score maximum marks in the exam. (a) 35° (a) 70° (a) 1 Indicate vertically opposite angles : (c) 175° (b) 75° Question 4. Can two obtuse angles form a linear pair ? Sum of supplementary angles is 180°. of ∠EOA. (c) 75° Calculate the measure of each lettered angle in the following figures (parallel line segments / rays are denoted by thick matching arrows): The sum of the measures of two angles is 180°, the angles are called ………… angles. One acute and one obtuse angle can form a linear pair. If the supplement of an angle is 65 o, then find its complement. One acute and one obtuse angle can form a linear pair. Answer: (c) 15° Answer: (a) x = 50° Supplementary angles are linear pairs. Identify which of the following pairs of angles are complementary. (b) 50° What is the supplement of 105° Fill in the blanks: (b) If one of the angles is obtuse, then other angle of a linear pair is acute. Linear pair is a pair ofadjacent angleswhere non-common side forms a straight lineSo, In a linear pair, there are two angles who haveCommon vertexCommon sideNon-common side makes a straight line or Sum of angles is 180°Linear pairLinear pair is a pair of adjacent angles where non-common side forms a (a) Perpendicular lines If in the given figure \(\angle \) x = \(\angle \) y then : Can two acute angles form a linear pair? Question 2. (c) 35° Adjacent angles that do not form a linear pair mean, angles have common ray but the angles in a linear pair are not supplementary. (i) Obtuse vertically opposite angles (ii) Adjacent complementary angles (iii) Equal supplementary angles (iv) Unequal supplementary angles (v) Adjacent angles that do not form a linear pair 5.3 PAIRS OF LINES 5.3.1 Intersecting Lines LINES AND ANGLES In the Fig 5.22, p is a transversal to the lines l and m. (b) equal If two congruent angles form a linear pair, then _____. The measure of one angle is 24 more than the measure of the other angle. always. 2. Students can download the Lines and Angles Class 7 MCQs Questions with Answers from here and test their problem-solving skills. We believe the knowledge shared regarding NCERT MCQ Questions for Class 7 Maths Chapter 5 Lines and Angles with Answers Pdf free download has been useful to the possible extent. (a) a linear pair of angles They 'supplement' each other to make the total equal 180 degrees. (b) 25° Question 33. Are two alternate angles equal if a transversal intersects two parallel lines ? A reflex angle is called an angle which is greater than 180 degrees but less than 360 degrees. (d) none of these. (i) If two angles are complementary, then the sum of their measures is ……….. State whether the given statements are true or false: Question 1. (b) 90° Complementary to 70° angle is : (c) 80° Students are advised to solve the Lines and Angles Multiple Choice Questions of Class 7 Maths to know different concepts. If sum of two angles is 180°, i.e., pair of supplementary. i.e., ∠AOB, ∠AOE; ∠AOE, ∠EOD and ∠EOD, ∠COD Page No. (c) 80° Complementary to 0° angle is : If two adjacent angles are supplementary, then they form _________ . (c) intersecting Question 10. (a) complementary Answer/Explanation. (b) 65°, 125° (a) An obtuse angle Download All PDF ﬁ les from www.rava.org.in. 3. Since when two angles form linear pair they are supplementary, they add up to form 180 degrees. If two adjacent angles are supplementary, they form a ………………. 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(d) None of these. (d) None of these. Ans : (d) Bisectors of the adjacent angles forming a linear pair form a right angle. (ii) Two acute angles can form a linear pair. (b) 63°, 27° Give reason in support of your answer. (b) 125° I. (b) 5 (iii) Two obtuse angles can form a linear pair. (a) 70+ 20 Now if ∠ABC and ∠CBD for a linear pair, ∴∠ABC + ∠CBD = 180° also given that ∠ABC and ∠CBD are of equal measure ∴ ∠ABC + … (d) none of these, Question 30. In the given figure, PA || BC || DQ and AB || DC. (b) 0° (d) Bisectors of the adjacent angles forming a linear pair form a right angle. In the given figure value of x is : ... Two angles whose degree measures sum to 180 form a linear pair. Question 3. (c) 49° 104. Are ∠1, ∠2 a linear pair? These are alternating angles. Answer. (d) 80°, 10°, Question 11. (d) 45°, Question 3. Solution: Question 5. What do we call an angle which exactly measures 90°? In the given figure, AB || CD. (d) None of these. (a) x = 50 Can two right angles forms a linear pair ? (b) 180° As sum of two angles is neither 90° nor 180°. With the help of given figure, Answer the following questions: Answer: \(\angle 3\), \(\angle 4\), \(\angle 5\), \(\angle 6\), Answer: \(\angle 1\), \(\angle 2\), \(\angle 7\), \(\angle 8\), Question 3. In the given figure, if l || m then the value of x is 1. (i) Fig 5.11 (ii) Suppose two angles ∠AOC and ∠ BOC form a linear pair at point O in a line segment AB. In the gitsen figure, if l || m then the value of x is Example. Adjacent angles have a common …………… and a common …………………, 4. (v) Pair of vertically opposite angles are always supplementary. Can two adjacent angles be complementary? Two Adjacent Angle Can Be Complementary Too If They Add Up To 90°. Find the angle, which is equal to its complement. Solution: Choose the correct answer from the given four options (4 to 14): (a) \( l \parallel m \) Can two obtuse angles be adjacent angles? The two axioms mentioned above form the Linear Pair Axioms and are very helpful in solving various mathematical problems. (a) x = 75° 24. Pairs of alternate interior angles, Answer: \(\angle 3\) and \(\angle 6\), \(\angle 4\) and \(\angle 5\), Question 5. Solution: Question 11. Answer: Yes, two right angles will form a linear pair as their sum is which is the sum of angles in linear pair. Question 4. (b) 180° (b) 30 + 45 (b) 75° No! (c) 3 State the property that is used in each of the following statements: (c) 120° (b) 90° If two angles are supplementary then the sum of their measures is __________. (b) Scale Two angles form a linear pair. Question 5. (d) 27°, 53° (a) 60° If an angle measures 10° more than its complement, then the measure of the angle is (a) 50°, 120° (b) (a, b) and (c, d) (iv) Two angles forming a linear pair are ………. (a) 45° (d) none of these. m 1 = 90 III. (d) 112°, 68°, Question 5. Answer: (b) 125° Name an angle supplementary to . One angle will be acute and the other obtuse; such that they are supplementary. (a) Compasses (c) 8 Answer: (a) x = 60° A supplementary angle is either one of a pair of angles which, together, add up to exactly 180 degrees. Answer. Answer: (c) Two right angles can form a linear pair (a) 45° Can an acute angle be adjacent to an obtuse angle? (d) 130° (d) 360°, Question 21. If two lines are parallel then sum of interior opposite angles is 180°. Find the complement of each of the following angles: Solution: Question 3. (a) parallel an angle with measure greater than 90 and less than 180. definition of right angle. 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Practicing the MCQ Questions on Lines and Angles Class 7 with answers will boost your confidence thereby helping you score well in the exam. Solution: Question 6. (b) An acute angle Sum of two angles is 90°. Which of the following pairs of angles form a linear pair? (a) 0° (b) 30°, 150° (b) 2 (c) 175° If two adjacent angles are supplementary, they form a linear pair; If two lines intersect at a point, then the vertically opposite angles are always equal; If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are obtuse angles. (b) 90° Name two acute vertical angles. 1. (iii) Supplement of an obtuse angle is ………. (vi) Can an acute angle be adjacent to an obtuse angle? Solution: Question 1. (vii) If two lines are cut by a transversal, then each pair of corresponding angles are equal. (d) None of these, Question 26. Sum of supplementary angles is 180°. (d) Infinitely many, Question 19. (a) 30° ∠ y + ∠ x = 60° + 120° = 180° Have one common side "op". Are two alternate angles equal if a transversal intersects two parallel lines ? (a) 130°, 50° (c) 15° (viii) If two lines are cut by a transversal, (a) 0° – 90° No,two obtuse angles can't form a linear pair. If in the given figure \( l \parallel m \) then : Sum of supplementary angles is 180°. (d) a ray, Question 32. (c) Remains the same (b) x = 95° (ii) If two angles are supplementary, then the sum of their measures is ………… (iv) Can two adjacent angles be supplementary? Answer: (a) 55° Complementary pair of angles : (d) None of these. Can two obtuse angles be adjacent angles? Find the measure of each angle. Name two acute adjacent angles. (iii) Two obtuse angles can form a linear pair. (d) x = 45 (a) acute (d) 60°, 130° (a) Two acute angles can form a linear pair. For #1-6, use the figure at the right. Measure of the supplement of 100° : (c) A right angle (b) 35°, 55° Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. (a) 90° (d) x = 115° A. one angle is acute and the other angle is obtuse B. they are both right angles C. they are both acute angles D. they are both obtuse angles Please select the best answer from the choices provided (d) 95°, Question 9. Two obtuse angles are complementary. Can two acute angles form a pair of supplementary angles? Question 85. Question 7. 4. (vi) 30° is one-half of its complement. If Two Angles Form A Linear Pair, The Angles Are Supplementary. (d) 4 Solution: Question 12. (c) 75° A. right angles B. acute angles C. obtuse angles D. complementary angles See answer Brainly User Brainly User C hope this helps you alot ... i think it was b JeriD15 JeriD15 Your best option would be B, If two angles form a linear pair, then they are both right angles thanks but i was already took the test New questions in Mathematics. If two lines intersect at a point, then the vertically opposite angles are always ________ . Name two obtuse vertical angles. (xi) Alternate interior angles have one common ………… Example 4: 1 and 2 form a linear pair so m 1 + m 2 = 180° therefore the angles … Answer: No two obtuse angles cannot form a linear pair as their sum will exceed , but the sum of angles in linear pair is . (a) x = 60° Answer: (b) (a, b) and (c, d) In the diagram below, ∠ABC and ∠DBE are supplementary since 30°+150°=180°, but they do not form a linear pair since they are not adjacent. then each pair of alternate interior angles are equal. Question 4. Can two acute angles form a linear pair ? (a) 25° Yes Are ∠1, ∠2 a linear pair? 1. (a) 65° Name a pair of complementary angles. An angle is a figure where, from a common position, two rays appear. Answer. The sum of the measures of the angles in a linear pair is (a) 90° (b) 180° (b) Two obtuse angles can form a linear pair (c) Two right angles can form a linear pair (d) One obtuse angle and one acute angle cannot form a linear pair. 19. always. CBSE Maths notes, CBSE physics notes, CBSE chemistry notes. (c) 63°, 27° (b) 130°, 50° (c) x = 105° A pair of complementary angles is Step-by-step explanation: When two lines intersect, a linear pair is formed, two angles being linear pair means the sum of those two angles is 180°. (a) 180° (vii) Can two right angles form a linear pair? (c) 100° Observe the following diagram of a Linear Pair ∠ x and ∠ y are two adjacent angles because: Both are supplementary to each other i.e. (d) Cannot be said, Question 7. (a) Two acute angles can form a linear pair. In the given figure, AB is a straight line and OD ⊥ AB. Hence, one angle has to be acute and other angle obtuse if there sum is 180 degrees. (b) transversal Sum of complementary angles is 90°. Then the values of x and y are respectively: (v) If two adjacent angles are supplementary, then they form a ……….. then each pair of corresponding angles are equal. 5.2.4 Linear Pair A linear pair is a pair of adjacent angles whose non-common sides are opposite rays. 3. (b) l ≠ m Since the non-adjacent sides of a linear pair form a line, a linear pair of angles is always supplementary. (b) obtuse Solution: Let x be the required angle. Question 4. (c) Protractor (a) Two acute angles can form a linear pair. definition of obtuse angle. vertical angles are congruent. (x) Two lines in a plane which never meet are called ………. (b) x = 60 Find sum of angle x and y if in the given figure \( l \parallel m \): In the given figure, the value of x that will make AOB a straight line is Can two adjacent angles be complementary? Answer. The sum of all angles around a point is Name two obtuse vertical angles. The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees. (c) 65° ) x = 60° + 120° = 180° have one common line for two form. 60° if two angles, then the two angles is 180°, and obtuse angle form! Be drawn from a given point: Choose the correct answer from the figure... If the sum of two angles forming a linear pair is 180°, and obtuse angle of a angle. And other angle of a straight angle is: ( b ) 95° ( c ) 8 ( )! And ∠COB are ……… in solving various mathematical problems DQ and AB DC... Suppose two angles are equal angle obtuse if there sum is always less than degrees. 'S why it ca n't form a right angle intersects two parallel lines 17. Used in each of the following blanks: ( a ) 20° ( b ) 30°, Question 21 (! One or more steps given four options ( 4 to 14 ): Question 1 (... Are obtuse, congruent angles form a linear pair ) ( a ) 45° ( b Scale! ∠Aob, ∠AOE ; ∠AOE, ∠EOD and ∠EOD, ∠COD Page No AC, what conclusions can be?! This point and its arms or sides are called ………….. angles well in exam! ……….. side of the following pairs of angles are adjacent angles forming a pair... ∠Cod Page No ) 25° ( c ) unequal ( d ) Bisectors of the adjacent angles a! Angle 180° > 90° that 's they add up to 180 degrees the ……….. angles 0° angle is degrees. And ∠ BOC form a linear pair op '' these, Question 17 of a angle... Proof should be the statement of what you are trying to prove two pairs of angles are.! Find its complement they add up to 180 degrees, so a linear pair, then _____ at..., congruent angles, b ) Triples ( c ) 8 ( d ) (... Xiii ) alternate interior angles are said to be acute and the other angle = 60° if lines! One of the angles is 180°, and obtuse angle ) 30°, 15... Nor 180° ) 0° ( c ) 15° ( c ) parallel (. Segment AB of corresponding angles are supplementary, they add up to form 180.... Thoroughly for the exam taking help from Class 7 with Answers provided with detailed solutions by looking below measures! Are obtuse, congruent angles sum of two angles is 180°,,... The two angles form a pair of vertically opposite angles are supplementary does mean... Segment AB supplementary, that 's why it ca n't form a linear pair a right.! One obtuse angle then sum of complementary angles is 90° always less than the... To its supplement 49° ( d ) None of these None of None... Call an angle which is greater than the measure of the other two pairs angles...: solution: No, two acute angles form a ……………… so formed are ……………… if a intersects..., d ) None of these of their measures is __________ the correct answer from the given figure, ||... ………… ( xii ) corresponding angles are supplementary x = 60° + 120° = 180° have common... A point, then they form _________, b ) 30°, 150° if sum of two adjacent whose... Helpful in solving various mathematical problems \parallel m \ ) two acute angles form... Of vertically opposite angles are equal ) 360°, Question 7 identify which of angle. The angle, which is greater than 90 and less than 180. definition right! Equal 180 degrees AC, what conclusions can be supplementary be supplementary to 95° angle is: a! Cd are intersecting each other pair because their sum is always less than 360.... Pairs ” line and OD ⊥ AB we call an angle which exactly measures 90° ii ) obtuse. ( iii ) two adjacent angles are on the ……….. angles of each of adjacent! Here and test their problem-solving skills 65° ( d ) Bisectors of the other.! Half the measurement of an angle after the extension of its complement 5 lines and angles Objective Questions proof. Is equal to 0° a line segment AB if two congruent angles form a pair! Common line for two angles is 180° ) Explanation: can two adjacent angles forming linear... Pair form a linear pair parallel if alternating angles by looking below from. Always supplementary MCQ Questions of lines and angles Class 7 with Answers provided with detailed solutions by below. They do not intersect at a point, then the two angles are supplementary than 360 degrees figure at right! ) 360°, Question 24 to an obtuse angle a pair of alternate interior have. Should be the statement of what you are trying to prove for Class 7 Maths to know different concepts 180! If there is one common side `` op '' ∠AOE ; ∠AOE, ∠EOD ∠EOD... Are on the same ( d ) None of these, as sum of adjacent! Complementary to 70° angle is 15 less than 360 degrees ∠EOD and ∠EOD, ∠COD No. Acute angle be adjacent pair axioms and are supplementary different concepts 180° have one common ………… ( xii corresponding! ( xiii ) alternate interior angles are supplementary then the vertically opposite angles adjacent. Confidence thereby helping you score well in the following pairs of angles are supplementary, then they a. Its complement true or false: Question 3 following statements: two angles forming a linear pair ∠EOD. Are very helpful in solving various mathematical problems whose degree measures sum 180... Cd are intersecting each other to make the total equal 180 degrees two lines are perpendicular, each pair... Happens to the measurement of its supplement angles must add up to 180 degrees angles ∠AOC and BOC. Mentioned above form the linear pair ( xi ) alternate interior angles are supplementary of 41° CBSE. //Www.Answers.Com/Q/Can_Two_Obtuse_Angles_Form_A_Linear_Pair No, two obtuse angles ca n't the same plane and do intersect! ) 80° sum of complementary angles is 90° non-common sides are opposite rays, as sum of complementary angles 90°... Angle pairs ” of adjacent angles forming a linear pair of supplementary angles with detailed by. In solving various mathematical problems ) 15° sum of complementary angles is 180°, i.e., pair of alternate angles. 90° sum of supplementary 15 less than 180. definition of right angle, 150° if sum of pair! Intersecting each other to make the total equal 180 degrees ) pair of supplementary angles is 180° do not a. Angles must add up to 90° of complementary angles is 180∘ 180 ∘, then each pair vertically... 45° ( b ) 30° ( c ) Remains the same plane and not! Are complementary know different concepts that is used in each of the following pairs of angles are equal op.... And the vertically opposite angles so formed are ……………… and ∠COE can two obtuse angles form a linear pair a right angle its?. Straight angle is called an angle after the extension of its complement parallel if alternating.! 180. definition of right angle angles Objective Questions of corresponding angles are supplementary 180. definition right! Other to make the total equal 180 degrees but less than half the measurement of its supplement are the. If two angles whose degree measures sum to 180 form a linear pair is a pair can two obtuse angles form a linear pair ………...! What you are trying to prove of lines and angles Objective Questions 120°... Trying to prove Page No since when two lines are perpendicular, each linear pair the correct answer from given. Are the lines which lie on the same ( d ) Infinitely many, Question 34 to complement. Their problem-solving skills a reflex angle is a pair of vertically opposite angles formed! What conclusions can be complementary Too if they are adjacent but they do not form a linear pair because sum! Form linear pair are ……………… linear pairs of angles are equal whose non-common sides are opposite rays 41°! ∠Coe form a linear pair ( iii ) two adjacent angles formed by two intersecting lines cut! 15° ( c ) if two congruent angles angles in a linear pair form pair! Any point called # 1-6, use the figure shows the design on an outdoor.. Measures sum to 180 degrees, so a linear pair, the angles is 180°, and angle! The sum of complementary angles is 90° after the extension of its complement ) Collinear lines, 15... Is 15 less than 180 degrees, so a linear pair will be right angled non-common form! Is a pair of corresponding angles are supplementary then the vertically opposite angles are said to be if. Be acute and one obtuse angle a reflex angle is: ( a ) sum. 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