There are 8 equidistant points A, B, C, D, E, F, G and H (in same order) on a circle. What is the value of ∠FDH (in degrees)?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 45°
Each central angle = 360°/8 = 45°
∠HOF = 2 × 45° = 90°
∠FDH = 90°/2 = 45° [Angle subtended by a chord at centre is double the angle subtended by same chord at a point on the circumference]