In the given figure, if AOB is a diameter of the circle and AC = BC, then ∠CAB is equal to:
A. 30º
B. 45º
C. 60º
D. 90º
Answer:B
In the given figure, if AOB is a diameter of the circle and AC = BC, then ∠CAB is equal to:
A. 30º B. 45º C. 60º D. 90º
Explanation: We know that the angle at circumference subtended by the diameter of the circle is the right angle.