In a circle, chords AB and AC are equal in length. If chord AB subtends an angle of 50° at the center, what is the angle subtended by chord AC at the center?
Show answer & explanation
Correct answer: A
Explanation
Chord AB = AC, ∠AOB = 50°
According to the formula:
Equal chords subtend equal angles at the center.
∠AOC = ∠AOB
= 50°