Class 9 Mathematics Quiz Chapter 6

Chapter 6 – Lines and Angles

Play the below Class 9 Mathematics Quiz Chapter 6 Lines and Angles. These questions are very important for examination. We have provided a quiz from each chapter of class 9 Mathematics NCERT book. Check it on our website.


1. Two complemetary angles are such that two times the measure of the one is equal to three times the measure of the other. The measure of the smaller angle is

(A) 45°
(B) 30°
(C) 36°
(D) 72°

2. Given \large\bf \angle AOC = 3x+10 and \large\bf \angle BOC = 2x-30. If AOB is a straight line, then the value of \large\bf x is

(A) 30°
(B) 50°
(C) 40°
(D) 90°

3. In the given figure below, the value of x is,

(A) 12°
(B) 15°
(C) 20°
(D) 30°

4. In the given figure, \large\bf AB \parallel CD, then the value of \large\bf x is,

(A) 25°
(B) 30°
(C) 45°
(D) 60°

5. In the given figure, \large\bf AB \parallel CD, then the value of \large\bf x is,

(A) 65°
(B) 45°
(C) 70°
(D) 55°

6. In the given figure, \large\bf OP \parallel RS, \large\bf \angle PQR =

(A) 50°
(B) 60°
(C) 70°
(D) 45°

7. In the given figure, if \large\bf l \parallel m, then \large\bf x =

(A) 65°
(B) 40°
(C) 105°
(D) 25°

8. In the given figure, if \large\bf l \parallel m, then \large\bf x =

(A) 90°
(B) 45°
(C) 35°
(D) 60°

9. An angle is equal to its complement. The measure of the angle is,

(A) 45°
(B) 90°
(C) 180°
(D) 60°

10. An angle is equal to its supplement. The measure of the angle is,

(A) 90°
(B) 180°
(C) 45°
(D) 60°

11. In the given figure which of the statements must be true

(i) a+b = d+c
(ii) a+c+e = 180 ^ {\circ}
(iii) b+f = c+e

(A) (i) only
(B) (ii) only
(C) (iii) only
(D) (ii) and (iii) only

12. In the given figure, if \large\bf l \parallel m, then \large\bf x =

(A) 65°
(B) 45°
(C) 85°
(D) 20°

13. In the given figure, if \large\bf x=2y and \large\bf x = \frac{z}{3}, then \large\bf x =

(A) 90°
(B) 45°
(C) 80°
(D) 40°

14. If two interior angles on the same side of the a transversal intersecting two parallel lines are in the ratio \large\bf 1:4, then the measure of the larger angle is,

(A) 36°
(B) 120°
(C) 144°
(D) 60°

15. One angle is equal to two times of its complement. The measure of the angle is

(A) 30°
(B) 45°
(C) 90°
(D) 60°



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