A chord of a circle is equal to its radius of length 9 cm. Find the angle subtended by it in major segment.
A90°
B60°
C30°
D120
Answer:
C. 30°
Read Explanation:
in a circle, the angle subtended by an arc at the center is twice the angle subtended by it at the remaining part of the circle.
The length of chord = radius = 9cm
It forms an equilateral triangle with each angle at 60°
The angle subtended by the chord at the center = 60°
angle subtended in the major segment is half of the angle subtended at the center.
60°/2 = 30°
