# MCQ Questions for Class 7 Maths Chapter 5 Lines and Angles with Answers

If you’re looking for a way to enhance your Class 7 Maths, then look no further than the NCERT MCQ Questions for Class 7 Maths Chapter 5 Lines and Angles with Answers Pdf free download. MCQ Questions for Class 7 Maths with Answers is perfect for those who are in Class 7 Maths and want to get ahead of everyone else by mastering their subject skills as soon as possible! You can practice and test your subject knowledge by solving these Class 7 Maths Chapter 5 Lines and Angles Objective Questions.

## Lines and Angles Class 7 MCQs Questions with Answers

Solving Class 7 Maths Chapter 5 MCQ with Answers can be of great help to students as they will be aware of all the concepts. These MCQ Questions on Lines and Angles Class 7 Maths with Answers pave for a quick revision, thereby helping you learn more about this subject.

Question 1.
(180°, 5°) pair of angle is given :
(a) complementary
(b) supplementary
(c) None of these

As sum of two angles is neither 90° nor 180°.

Question 2.
What is the measure of the complement of 65°?
(a) 25°
(b) 55°
(c) 65°
(d) 45°

Question 3.
Complementary to 0° angle is :
(a) 90°
(b) 95°
(c) 75°
(d) None of these

Sum of complementary angles is 90°.

Question 4.
Identify which of the following pairs of angles are complementary.
(a) 65°, 115°
(b) 130°, 50°
(c) 63°, 27°
(d) 112°, 68°

Question 5.
Complementary to 70° angle is :
(a) 20°
(b) 30°
(c) 40°
(d) None of these

Sum of complementary angles is 90°.

Question 6.
What happens to the measurement of an angle after the extension of its arms?
(a) Doubles
(b) Triples
(c) Remains the same
(d) Cannot be said

Question 7.
Complementary to 95° angle is :
(a) 5°
(b) 0°
(c) 10°
(d) None of these

None of these, as sum of complementary angles is 90°.

Question 8.
What is the supplement of 105°
(a) 65°
(b) 75°
(c) 85°
(d) 95°

Question 9.
Find the value of x in the given figure if lines $$p \parallel q$$ :

(a) x = 60°
(b) 50°
(c) 75°
(d) none of these

If two lines are parallel then corresponding angles are equal.

Question 10.
Identify which of the following pairs of angles are supplementary.
(a) 45°, 45°
(b) 63°, 27°
(c) 112°, 68°
(d) 80°, 10°

Question 11.
Measure of the supplement of 0° :
(a) 180°
(b) 90°
(c) 175°
(d) None of these

Sum of supplementary angles is 180°.

Question 12.
What do we call an angle whose measurement is exactly equal to 0°?
(a) An obtuse angle
(b) A straight angle
(c) A zero angle
(d) A right angle

Question 13.
If in the given figure $$l \parallel m$$ then :

(a) x = 50°
(b) x = 60°
(c) No relation

These are alternating angles.

Question 14.
What are the lines which lie on the same plane and do not intersect at any point called?
(a) Perpendicular lines
(b) Intersecting lines
(c) Parallel lines
(d) Collinear lines

Question 15.
In the given figure value of x is :

(a) 55°
(b) 45°
(c) 65°
(d) None of these

Vertically opposite angles are equal.

Question 16.
Find the angle, which is equal to its complement.
(a) 45°
(b) 25°
(c) 35°
(d) 30°

Question 17.
Indicate vertically opposite angles :

(a) (a, d)
(b) (a, b) and (c, d)
(c) (a, c) and
(d) None of these

Answer: (b) (a, b) and (c, d)
Lines AB and CD are intersecting each other.

Question 18.
How many rays can be drawn from a given point?
(a) 2
(b) 5
(c) 8
(d) Infinitely many

Question 19.
What do we call an angle which exactly measures 90°?
(a) An obtuse angle
(b) An acute angle
(c) A right angle
(d) A reflex angle

Question 20.
If two angles are supplementary then the sum of their measures is __________.
(a) 45°
(b) 180°
(c) 90°
(d) 360°

Question 21.
Measure of the supplement of 100° :
(a) 70°
(b) 75°
(c) 80°
(d) None of these

Sum of supplementary angles is 180°.

Question 22.
The sum of all angles around a point is
(a) 0°
(b) 180°
(c) 360°
(d) 90°

Question 23.
Which instrument is used to measure or construct angles?
(a) Compasses
(b) Scale
(c) Protractor
(d) Set squares

Question 24.
Measure of the supplement of 55° :
(a) 45°
(b) 125°
(c) 100°
(d) None of these

Sum of supplementary angles is 180°.

Question 25.
A line that intersects two or more lines at distinct points is called
(a) parallel
(b) transversal
(c) intersecting
(d) None of these

Question 26.
Complementary pair of angles :
(a) 70+ 20
(b) 30 + 45
(c) 0 + 95
(d) None of these

Sum of two angles is 90°.

Question 27.
Find the angle, which is equal to its supplement.
(a) 60°
(b) 90°
(c) 120°
(d) 30°

Question 28.
Identify supplementary pair of angles :
(a) 0° – 90°
(b) 30°, 150°
(c) 45° – 145°
(d) None of these

If sum of two angles is 180°, i.e., pair of supplementary.

Question 29.
If two lines intersect at a point, then the vertically opposite angles are always ________ .
(a) supplementary
(b) equal
(c) unequal
(d) none of these

Question 30.
If in the given figure $$\angle$$ x = $$\angle$$ y then :

(a) $$l \parallel m$$
(b) l ≠ m
(c) none of these

Answer: (a) $$l \parallel m$$
Two lines are parallel if alternating angles are equal.

Question 31.
If two adjacent angles are supplementary, then they form _________ .
(a) a linear pair of angles
(b) vertically opposite angles
(c) Corresponding angles
(d) a ray

Answer: (a) a linear pair of angles

Question 32.
In the given value of x is :

(a) 35°
(c) 15°
(b) 90°
(d) None of these

Sum of linear pair is 180°.

Question 33.
What is the measure of the complement of 41°?
(a) 135°
(b) 15°
(c) 49°
(d) None of these

Question 34.
Find sum of angle x and y if in the given figure $$l \parallel m$$:

(a) 90°
(b) 180°
(c) 175°
(d) none of these

If two lines are parallel then sum of interior opposite angles is 180°.

Match the following:

Question 1.

 (a)    30° 60° 1. Linear pair (b)   90° 90° 2. Complementary angles (c)    30° 150° 3. Supplementary angles (d)   45° 4. Acute angle

 (a )30° 60° 2. Complementary angles (b) 90° 90° 1. Linear pair (c) 30° 150° 3. Supplementary angles (d) 45° 4. Acute angle

Question 2.

 (a)    100° 1. 125° (b)   90° 2. 65° (c)   55° 3. 90° (d) 115° 4. 80°

 (a) 100° 4. 80° (b) 90° 3. 90° (c)55° 1. 125° (d) 115° 2. 65°

State whether the given statements are true or false:

Question 1.
Can two acute angles form a linear pair ?

Question 2.
Can two obtuse angles form a linear pair ?

Question 3.
Can two right angles forms a linear pair ?

Question 4.
Are two alternate angles equal if a transversal intersects two parallel lines ?

Question 5.
One acute and one obtuse angle can form a linear pair.

Question 6.
Two obtuse angles are complementary.

Question 7.
One acute and one obtuse angle can be supplementary.

Question 8.
Sum of linear pair is 180°.

Fill in the blanks:

1. The sum of the measures of two angles is 180°, the angles are called ………… angles.

2. Two lines intersect and the vertically opposite angles so formed are ……………….

3. Adjacent angles have a common …………… and a common …………………

4. If two adjacent angles are supplementary, they form a ………………

5. The sum of the measures of two angles is 90°, the angles are called ………….. angles.

6. Line segment has ………… end points.

7. Two angles forming a linear pair are …………….

With the help of given figure, Answer the following questions:

Question 1.
Interior angles

Answer: $$\angle 3$$, $$\angle 4$$, $$\angle 5$$, $$\angle 6$$

Question 2.
Exterior angles

Answer: $$\angle 1$$, $$\angle 2$$, $$\angle 7$$, $$\angle 8$$

Question 3.
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.
Pairs of alternate interior angles

Answer: $$\angle 3$$ and $$\angle 6$$, $$\angle 4$$ and $$\angle 5$$

Question 5.
Pairs of alternate exterior angles

Answer: $$\angle 1$$ and $$\angle 8$$, $$\angle 2$$ and $$\angle 7$$

Question 6.
Pair of interior angles on the same side of the transversal

Answer: $$\angle 3$$ and $$\angle 5$$, $$\angle 4$$ and $$\angle 6$$