We have compiled the NCERT MCQ Questions for Class 7 Maths Chapter 5 Lines and Angles with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 7 Maths with Answers on a daily basis and score well in exams. Refer to the Lines and Angles Class 7 MCQs Questions with Answers here along with a detailed explanation.

## Lines and Angles Class 7 MCQs Questions with Answers

Choose the correct option.

Question 1.

The measure of the complement of the angle 40° is

(a) 15°

(b) 40°

(c) 50°

(d) 140°

## Answer

Answer: (c) 50°

Question 2.

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

(a) adjacent angles

(b) complementary angles

(c) vertically opposite angles

(d) supplementary angles

## Answer

Answer: (b) complementary angles

Question 3.

Which of the following pairs can form a linear pair?

(a) Pair of complementary angles

(b) Pair of supplementary angles

(c) Pair of adjacent angles

(d) Pair of vertically opposite angles

## Answer

Answer: (b) Pair of supplementary angles

Question 4.

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

(a) vertically opposite angles

(b) supplementary angles

(c) complementary angles

(d) alternate angles

## Answer

Answer: (b) supplementary angles

Question 5.

Which pair of the following angles are complementary?

## Answer

Answer: (d)

Question 6.

Which of the following is false

(a) ∠1 = ∠2

(b) ∠2 = ∠4

(c) ∠2 + ∠3 = 180°

(d) ∠3 + ∠4 = 180°

## Answer

Answer: (a) ∠1 = ∠2

Question 7.

Which angle is complementary to ∠CBD?

(a) ∠FBC

(b) ∠EBF

(c) ∠ABC

(d) ∠DBE

## Answer

Answer: (d) ∠DBE

Question 8.

In the given figure, the value of a is

(a) 35°

(b) 45°

(c) 55°

(d) 110°

## Answer

Answer: (c) 55°

Question 9.

Find the value of x in the following figure if l || m

(a) 30°

(b) 50°

(c) 60°

(d) 90°

## Answer

Answer: (c) 60°

Question 10.

In the given figure l || m. Find the measure of ‘x’.

(a) 120°

(b) 60°

(c) 45°

(d) 30°

## Answer

Answer: (b) 60°

Question 11.

The sum of two complementary angles is:

(a) 90°

(b) 180°

(c) 360°

(d) Any angle between 180° and 360°

## Answer

Answer: (c) Water

Question 12.

The sum of two supplementary angles is:

(a) 90°

(b) 180°

(c) 360°

(d) Any angle between 180° and 360°

## Answer

Answer: (c) Water

Look at the following figures and fill in the blanks

Question 1.

x° = ………………..

## Answer

Answer: 20°

Question 2.

x° = ………………..

## Answer

Answer: 15°

Question 3.

∠x = ∠y = ……………..

## Answer

Answer: 30°

Question 4.

If p and q are parallel lines then ∠1 + ∠2 = ……………..

## Answer

Answer: 180°

Question 5.

Two angles are said to be …………………. if the sum of their measures is 90°.

## Answer

Answer: Complementary

Question 6.

Two angles are said to be …………………. if the sum of their measures is 180°.

## Answer

Answer: Supplementary

Question 7.

The complement of 15° is ………………….

## Answer

Answer: 75°

Question 8.

The …………………. of 10° is 170°.

## Answer

Answer: Supplement

Question 9.

The sum of two angles in a linear pair is ………………….

## Answer

Answer: 180°

Question 10.

Two adjacent angles have a common …………………. and a common vertex.

## Answer

Answer: arm

Question 11.

Two …………………. adjacent angles form a linear pair.

## Answer

Answer: Supplementary

Question 12.

If the sum of the measures of two angles is 90°, then each one of them is the …………………. of the other.

## Answer

Answer: Complement

Question 13.

Parallel lines are always …………………. [equal/equidistant]

## Answer

Answer: Equidistant

Question 14.

If two parallel lines are intersected by a transversal, then a pair of alternate angles are …………………. [equal/complementary]

## Answer

Answer: equal

Match the following

## Answer

Answer:

a. → (iii)

b. → (iv)

c. → (ii)

d. → (i)

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