Question

What is the value of a?
A.50 B.90 C.27.5 D.45

Answer 1

B. 90

Explanation:

The 45° angle is an inscribed angle that subtends arc a.

An inscribed and measures half the measure of its subtended arc.

45° = (1/2) * a°

a = 2 * 45

a = 90

Answer 2

`a = 45 * 5 \\ a = 90 \degree`