What happens to the measurement of an angle after the extension of its arms? CBSE Maths notes, CBSE physics notes, CBSE chemistry notes. Question 16. (c) A right angle Solution: Question 6. Fill in the blanks: If Two Angles Form A Linear Pair, The Angles Are Supplementary. (a) 55°, 115° (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 …….. Question 4. Identify which of the following pairs of angles are supplementary. For #1-6, use the figure at the right. Find the value of x in the given figure if lines \( p \parallel q \) : Solution: 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. Question 31. Now if ∠ABC and ∠CBD for a linear pair, ∴∠ABC + ∠CBD = 180° also given that ∠ABC and ∠CBD are of equal measure ∴ ∠ABC + … (b) 30°, 150° Question 7. Solution: Question 11. (c) 45° – 145° Can two obtuse angles be adjacent angles? (c) 35° The sum of the measures of two angles is 90°, the angles are called ………….. angles. If ED AC , what conclusions can be reached in one or more steps? (b) 180° i.e., ∠AOB, ∠AOE; ∠AOE, ∠EOD and ∠EOD, ∠COD Page No. (d) None of these. What is the measure of the complement of 41°? an angle with measure equal to 90. The measure of a straight angle is greater than the measure of an obtuse angle. Indicate vertically opposite angles : Linear pairs of angles are adjacent and are supplementary, that's they add upto 180°. Are two alternate angles equal if a transversal intersects two parallel lines ? Answer: true. Measure of the supplement of 0° : (iv) Can two adjacent angles be supplementary? (b) 55° (d) 45°, Question 3. Question 27. Answer/Explanation. Complementary to 0° angle is : (c) 360° (b) Scale https://www.answers.com/Q/Can_two_obtuse_angles_form_a_linear_pair Solution: Question 14. Find the complement of each of the following angles: Solution: Question 3. Are two alternate angles equal if a transversal intersects two parallel lines ? The vertex of the angle is called this point and its arms or sides are called the two rays forming the angle. (c) 65° (d) None of these. Name a linear pair. Answer: (a) 55° (c) No relation. Question 18. If in the given figure \( l \parallel m \) then : Solution: Kerala Syllabus 9th Standard Physics Solutions Guide, Kerala Syllabus 9th Standard Biology Solutions Guide, ML Aggarwal Class 7 Solutions for ICSE Maths, NCERT Solutions for Class 6 Sanskrit Ruchira Bhag 1, NCERT Solutions for Class 7 Maths Chapter 15 Visualising Solid Shapes InText Questions, NCERT Solutions for Class 7 Maths Chapter 14 Symmetry InText Questions, NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers InText Questions, NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions InText Questions, NCERT Solutions for Class 7 Maths Chapter 11 Perimeter and Area InText Questions, NCERT Solutions for Class 7 Maths Chapter 9 Rational Numbers InText Questions, NCERT Solutions for Class 7 Maths Chapter 8 Comparing Quantities InText Questions, NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles InText Questions, NCERT Solutions for Class 7 Maths Chapter 6 The Triangle and its Properties InText Questions, NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles InText Questions, NCERT Solutions for Class 7 Maths Chapter 4 Simple Equations InText Questions, NCERT Solutions for Class 7 Maths Chapter 3 Data Handling InText Questions, NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals InText Questions, NCERT Solutions for Class 7 Maths Chapter 1 Integers InText Questions. (b) x = 35 (d) None of these. (iv) Two angles forming a linear pair are ………. (b) 65°, 125° (a) x = 50 The two axioms mentioned above form the Linear Pair Axioms and are very helpful in solving various mathematical problems. Find sum of angle x and y if in the given figure \( l \parallel m \): (a) Two acute angles can form a linear pair. If an angle is one-third of its supplement, then the measure of the angle is (a) 135° (d) None of these. (vii) Adjacent angles have a common vertex, a common ……….. and no common ……… Can two obtuse angles form a linear pair ? Answer. Two angles are said to be linear if they are adjacent angles formed by two intersecting lines. (b) If one of the angles is obtuse, then other angle of a linear pair is acute. (c) x = 70 (vii) If two lines are cut by a transversal, (d) straight (c) 60°, 120° Yes Are ∠1, ∠2 a linear pair? (a) 65°, 115° (viii) If two lines are cut by a transversal, Can two adjacent angles be complementary? 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. (c) 15° (d) x = 115° a. (a) Two acute angles can form a linear pair. Answer: (a) \( l \parallel m \) (b) 47°, 133° (a) \( l \parallel m \) (a) (a, d) One acute and one obtuse angle can be supplementary. Can two right angles form a linear pair? (a) complementary Practicing the MCQ Questions on Lines and Angles Class 7 with answers will boost your confidence thereby helping you score well in the exam. E. The last statement of a proof should be the statement of what you are trying to prove. Can 2 Adjacent Angle Be Complementary? Since when two angles form linear pair they are supplementary, they add up to form 180 degrees. Solution: No, two acute angles cannot form a pair of supplementary angles. Name a pair of complementary angles. (b) 75° (Why?) Answer: (b) 180° Can two adjacent angles be complementary? 18. 4. (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. (c) 75° (a) An obtuse angle (a) Perpendicular lines 3. (c) Protractor (b) 50°, 130° A reflex angle is called an angle which is greater than 180 degrees but less than 360 degrees. Answer: (a) 180° Answer. 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 Solution: Let x be the required angle. Answer: No two obtuse angles cannot form a linear pair as their sum will exceed , but the sum of angles in linear pair is . 13. Can an acute angle be adjacent to an obtuse angle? One angle will be acute and the other obtuse; such that they are supplementary. 3 is a right angle II. (a) Two acute angles can form a linear pair. 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