NCERT MCQ Questions for Class 7 Maths **Lines and Angles** with Answers PDF Free Download based on the major ideas and themes presented in the textbook as per the CBSE new test pattern are available here. This will help you learn and test your understanding of the chapters. Students can also take a free test of Class 7 Maths Multiple Choice Questions. Each question has four possibilities, each of which is followed by the correct response. These MCQ Questions were chosen in accordance with the most recent CBSE exam format.

## Q1.Find the angle, which is equal to its supplement.

(1)(i) 60°

(2)(ii) 90°

(3)(iii) 120°

(4)(iv) 30°

## Answer

Answer: (ii) 90°

## Q2.Which of the following pairs can form a linear pair?

(1)(i) Pair of complementary angles

(2)(ii) Pair of supplementary angles

(3)(iii) Pair of adjacent angles

(4)(iv) Pair of vertically opposite angles

## Answer

Answer: (ii) Pair of supplementary angles

## Q3.Complementary to 0° angle is :

(1)(i) 90°

(2)(ii) 95°

(3)(iii) 75°

(4)(iv) None of these

## Answer

Answer: (i) 90°

## Q4.What will be the measure of the supplementary of each one of the following angles? 125°

(1)(i) 55°

(2)(ii) 65°

(3)(iii) 75°

(4)(iv) 45°

## Answer

Answer: (i) 55°

## Q5.If one angle is (90−x)º. Find the supplement.

(1)(i) 90

(2)(ii) x

(3)(iii) x−90

(4)(iv) 90+ x

## Answer

Answer: (iv) 90+ x

## Q6.What do we call an angle whose measurement is exactly equal to 0o?

(1)(i) An obtuse angle

(2)(ii) A straight angle

(3)(iii) A zero angle

(4)(iv) A right angle

## Answer

Answer: (iii) A zero angle

## Q7.The measure of the complement of the angle 46° is

(1)(i) 90°

(2)(ii) 44°

(3)(iii) 16°

(4)(iv) 136°

## Answer

Answer: (ii) 46°

## Q8.What will be the measure of the complement of each one of the following angles? 78°

(1)(i) 22

(2)(ii) 12°

(3)(iii) 32°

(4)(iv) 42°

## Answer

Answer: (ii) 12°

## Q9.What are the lines which lie on the same plane and do not intersect at any point called?

(1)(i) Perpendicular lines

(2)(ii) Intersecting lines

(3)(iii) Parallel lines

(4)(iv) Collinear lines

## Answer

Answer: (iii) Parallel lines

## Q10.Complementary to 95° angle is :

(1)(i) 5°

(2)(ii) 0°

(3)(iii) 10°

(4)(iv) None of these

## Answer

Answer: (iv) None of these

## Q11.Give an example for vertically opposite angles from above figure.

(1)(i) ∠AOD and ∠FOC

(2)(ii) ∠AOB and ∠DOE

(3)(iii) ∠DOE and ∠COF

(4)(iv) ∠AOD and ∠AOB

## Answer

Answer: (iii) ∠DOE and ∠COF

## Q12.Two angles can be supplement if both of them are:

(1)(i) obtuse angles

(2)(ii) right angles

(3)(iii) acute angles

(4)(iv) reflex angles

## Answer

Answer: (ii) right angles

## Q13.If two adjacent angles are supplementary, then they form __

(1)(i) a linear pair of angles

(2)(ii) vertically opposite angles

(3)(iii) Corresponding angles

(4)(iv) a ray

## Answer

Answer: (i) a linear pair of angles

## Q14.Identify which of the following pairs of angles are supplementary.

(1)(i) 45°, 45°

(2)(ii) 63°, 27°

(3)(iii) 112°, 68°

(4)(iv) 80°, 10°

## Answer

Answer: (iii) 112°, 68°

## Q15.Which is the example of alternate interior angle?

(1)(i) ∠3 and ∠6

(2)(ii) ∠1 and ∠2

(3)(iii) ∠7 and ∠8

(4)(iv) ∠5 and ∠6

## Answer

Answer: (i) ∠3 and ∠6

## Q16.What do we call an angle whose measurement is exactly equal to 0°?

(1)(i) An obtuse angle

(2)(ii) A straight angle

(3)(iii) A zero angle

(4)(iv) A right angle

## Answer

Answer: (iii) A zero angle

## Q17.The measure of the supplement of the angle 120° is

(1)(i) 30°

(2)(ii)45°

(3)(iii) 60°

(4)(iv) 90°

## Answer

Answer: (iii) 60°

## Q18.If two lines intersect at a point, then the vertically opposite angles are always __

(1)(i) supplementary

(2)(ii) equal

(3)(iii) unequal

(4)(iv) none of these

## Answer

Answer: (ii) equal

## Q19.If two angles are supplementary then the sum of their measures is ___________.

(1)(a) 45°

(2)(b) 180°

(3)(c) 90°

(4)(d) 360°

## Answer

Answer: (b) 180°

## Q20.Measure of the supplement of 100° :

(1)(a) 70°

(2)(b) 75°

(3)(c) 80°

(4)(d) None of these

## Answer

Answer: (c) 80°

## Q21.Which instrument is used to measure or construct angles?

(1)(a) Compasses

(2)(b) Scale

(3)(c) Protractor

(4)(d) Set squares

## Answer

Answer: (c) Protractor

## Q22.If a transversal intersects two parallel lines then the interior angles on the same side of the transversal are

(1)(a) vertically opposite angles

(2)(b) supplementary angles

(3)(c) complementary angles

(4)(d) alternate angles

## Answer

Answer: (b) supplementary angles

## Q23.What is the measure of the complement of 41°?

(1)(a) 135°

(2)(b) 15°

(3)(c) 49°

(4)(d) None of these

## Answer

Answer: (c) 49°

## Q24.If two adjacent angles are supplementary, then they form __________.

(1)(a) a linear pair of angles

(2)(b) vertically opposite angles

(3)(c) Corresponding angles

(4)(d) a ray

## Answer

Answer: (a) a linear pair of angles

## Q25.A line that intersects two or more lines at distinct points is called

(1)(a) parallel

(2)(b) transversal

(3)(c) intersecting

(4)(d) None of these

## Answer

Answer: (b) transversal

## Q26.The sum of the measures of the angles in a linear pair is

(1)(a) 90°

(2)(b) 180°

(3)(c) 360°

(4)(d) none of these

## Answer

Answer: (b) 180°

## Q27.The measure of the supplement of the angle 179° is

(1)(a) 1°

(2)(b) 2°

(3)(c) 3°

(4)(d) 4°

## Answer

Answer: (a) 1°

## Q28.The angles in a linear pair are

(1)(a) complementary

(2)(b) supplementary

(3)(c) not adjacent angles

(4)(d) vertically opposite angles

## Answer

Answer: (b) supplementary

## Q29.Which of the following statements is true?

(1)(a) Two acute angles can form a linear pair

(2)(b) Two obtuse angles can form a linear pair

(3)(c) Two right angles can form a linear pair

(4)(d) One obtuse angle and one acute angle cannot form a linear pair

## Answer

Answer: (d) One obtuse angle and one acute angle cannot form a linear pair

## Q30.The sum of two complementary angles is:

(1)(a) 90°

(2)(b) 180°

(3)(c) 360°

(4)(d) Any angle between 180° and 360°

## Answer

Answer: (c) 360°

## Q31.Complementary to 70° angle is :

(1)(a) 20°

(2)(b) 30°

(3)(c) 40°

(4)(d) None of these

## Answer

Answer: (a) 20°

## Q32.Identify supplementary pair of angles :

(1)(a) 0° – 90°

(2)(b) 30°, 150°

(3)(c) 45° – 145°

(4)(d) None of these

## Answer

Answer: (b) 30°, 150°

## Q33.The measure of the complement of the angle 40° is

(1)(a) 15°

(2)(b) 40°

(3)(c) 50°

(4)(d) 140°

## Answer

Answer: (c) 50°

## Q34.Which of the following statements is false?

(1)(a) When a transversal cuts two lines, such that pairs of corresponding angles are equal, then the lines have to be parallel

(2)(b) When a transversal cuts two lines such that pairs of alternate interior angles are equal, then the lines have to be parallel

(3)(c) When a transversal cuts two lines such that pairs of interior angles on the same side of the transversal are supplementary, then the lines have to be parallel

(4)(d) When a transversal cuts two lines such that pairs of interior angles on the same side of the transversal are complementary, then the lines have to be parallel

## Answer

Answer: (d) When a transversal cuts two lines such that pairs of interior angles on the same side of the transversal are complementary, then the lines have to be parallel

## Q35.When the sum of the measures of two angles is 90°, the angles are called

(1)(а) supplementary angles

(2)(b) complementary angles

(3)(c) adjacent angles

(4)(d) vertically opposite angles

## Answer

Answer: (b) complementary angles

## Q36.The sum of the measures of two complementary angles is

(1)(a) 180°

(2)(b) 60°

(3)(c) 45°

(4)(d) 90°

## Answer

Answer: (d) 90°

## Q37.The measure of the complement of the angle 30° is

(1)(а) 30°

(2)(b) 16°

(3)(c) 60°

(4)(d) 160°

## Answer

Answer: (c) 60°

## Q38.What is the measure of the complement of the angle 80°?

(1)(a) 10°

(2)(b) 100°

(3)(c) 36°

(4)(d) 20°

## Answer

Answer: (a) 10°

## Q39.The measure of the angle which is equal to its complement is

(1)(a) 30°

(2)(b) 60°

(3)(c) 46°

(4)(d) 90°

## Answer

Answer: (c) 46°

## Q40.Which of the following pairs of angles is not a pair of complementary angles?

(1)(a) 60°, 30°

(2)(b) 66°, 34°

(3)(c) 0°, 90°

(4)(d) 160°, 30°

## Answer

Answer: (d) 160°, 30°

## Q41.What is the measure of the complement of the angle 90°?

(1)(а) 90°

(2)(b) 0°

(3)(c) 180°

(4)(d) 46°

## Answer

Answer: (b) 0°

## Q42.When the sum of the measures of two angles is 180°, the angles are called

(1)(a) adjacent angles

(2)(b) complementary angles

(3)(c) vertically opposite angles

(4)(d) supplementary angles

## Answer

Answer: (d) supplementary angles

## Q43.The sum of the measures of two supplementary angles is

(1)(a) 90°

(2)(b) 180°

(3)(c) 360°

(4)(d) none of these

## Answer

Answer: (b) 180°

## Q44.The measure of the supplement of the angle 90° is

(1)(a) 45°

(2)(b) 60°

(3)(c) 30°

(4)(d) 90°

## Answer

Answer: (d) 90°

## Q45.The measure of the angle which is equal to its supplement is

(1)(a) 30°

(2)(b) 45°

(3)(c) 90°

(4)(d) 60°

## Answer

Answer: (c) 90°

## Q46.Which of the following pairs of angles is not a pair of supplementary angles?

(1)(a) 90°, 90°

(2)(b) 32°, 58°

(3)(c) 0°, 180°

(4)(d) 76°, 104°

## Answer

Answer: (b) 32°, 58°

## Q47.What is the measure of the supplement of the angle 0°?

(1)(a) 45°

(2)(b) 90°

(3)(c) 120°

(4)(d) 180°

## Answer

Answer: (d) 180°

## Q48.Find the measure of the angle which is double of its complementary angle?

(1)(a) 60°

(2)(b) 30°

(3)(c) 45°

(4)(d) 120°

## Answer

Answer: (a) 60°

## Q49.Find the measure of the angle which is half of its supplementary angle?

(1)(a) 60°

(2)(b) 120°

(3)(c) 90°

(4)(d) 45°

## Answer

Answer: (a) 60°