if arc CD=73 degrees, then what is the measure of <B? a central angle and its circumscribed angle are supplementary angles

Answer 1

If arc CD = 73 degrees, then the measure of angle B is 180 - 73 = 107 degrees.

This is because a central angle and its circumscribed angle are supplementary angles, meaning they add up to 180 degrees. Since the measure of the central angle is given as 73 degrees, we can find the measure of angle B by subtracting 73 from 180.