In the given figure, AB is a chord of a cirde with centre O and AB is produced to C such that BC = OB. Also, CO is joined and produced to meet the circle in D. If ∠ACD = 25°, then ∠AOD = ?
A. 50°
B. 75°
C. 90°
D. 100°
Answer:B
In the given figure, AB is a chord of a cirde with centre O and AB is produced to C such that BC = OB. Also, CO is joined and produced to meet the circle in D. If ∠ACD = 25°, then ∠AOD = ?
A. 50° B. 75° C. 90° D. 100°