A chord is equal to the radius of the circle. Find the angle subtended at the center.
Show answer & explanation
Correct answer: B
Explanation
Given:
Length of the chord = Radius (R)
According to the formula:
Chord = 2R sin(θ/2)
R = 2R sin(θ/2)
Dividing by R:
1 = 2 sin(θ/2)
sin(θ/2) = 1/2
θ/2 = 30°
θ = 60°