Question

in a unit circle, the radian measure of the central angle is equal to the length of the ______. choose the correct answer below. a. intercepted arc b. radius of the circle c. diameter of the circle

Explanation:

The definition of radian measure in a unit - circle states that the radian measure of a central angle is the ratio of the length of the intercepted arc to the radius. Since the radius of a unit - circle is 1, the radian measure of the central angle is equal to the length of the intercepted arc.

Answer:

A. intercepted arc