4) the angles a and b are supplementary.
if a=(63+3), what is the measure of b in terms of z?

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle