Find the angle subtended at the center of a circle by a chord which is equal in length to the radius of the circle.
A.
30°
B.
45°
C.
60°
D.
90°
Correct Answer: 60°
Explanation
If a length of a chord is equal to the length of a radius in the same circle, the triangle formed y the chord and the radii is an equilateral triangle
∴each angle = 60°
If a length of a chord is equal to the length of a radius in the same circle, the triangle formed y the chord and the radii is an equilateral triangle
∴each angle = 60°