Triangle ABC

is inscribed within a circle and has diameter line AB
, with the inscribed angle at C
. If the angle measure of A
is 15°, what is the arc measure of AC
?(1 point)

The arc measure of AC can be found by using the inscribed angle theorem, which states that the measure of an inscribed angle is equal to half the measure of the arc it intercepts.

Since the angle measure of A is 15°, we can use the inscribed angle theorem to find the arc measure of AC:
Arc measure of AC = 2 * 15° = 30°

Therefore, the arc measure of AC is 30°.