Circles-MCQ

Class IX Math
MCQ for Circle
1.   In the figure, if O is the centre of a circle, then the measure of ∠ACB is:
       (i) 80°
(ii) 100°
(iii) 40°
(iv) 60°
2.   The angle subtended by the diameter of a semicircle is:
       (i) 45°
(ii) 180°
(iii) 90°
(iv) 60°
3.   In the figure, if O is the centre of the circle, then the measure of x is:
       (i) 40°
(ii) 80°
(iii) 50°
(iv) 110°
4.   In the figure, if O is the centre of the circle, then what is the measure of ∠ADC?
       (i) 45°
(ii) 60°
(iii) 90°
(iv) 110°
5.   In the figure, O is the centre of the circle. What is the measure of ∠AOC?
       (i) 120°
(ii) 136°
(iii) 128°
(iv) 158°
6.   In the figure, O is the centre of the circle and PR = QR. What is the measure of ∠PQR?
       (i) 60°
(ii) 110°
(iii) 75°
(iv) 45°
7.   In the figure, O is the centre of the circle. What is the measure of ∠ACB?
       (i) 45°
(ii) 60°
(iii) 70°
(iv) 90°
8.   In the figure, O is the centre of the circle. What is the value of x?
       (i) 125°
(ii) 105°
(iii) 95°
(iv) 85°
9.   In the figure, O is the centre of the circle. If ∠ADC = 140°, then what is the value of x?
       (i) 45°
(ii) 55°
(iii) 60°
(iv) 45°
10.   If ∠A and ∠C are in the ratio 3 : 2, then we have:
          ∠A = ................................. and ∠B = .................................
       (i) 108°, 75°
(ii) 120°, 60°
(iii) 105°, 75°
(iv) 125°, 55°
Answers