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
30o
B
45o
C
60o
D
90o
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
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 = 60o
Source: Myschool Past Questions Archive (Record #9282)