Question

For the rotation 621°, find the coterminal angle from 0° <0 < 360°, the quadrantand the reference angle.

Answer 1

We will have the following:

First, we calculate the coterminal angle:

$621-360=261$

So, we will have the following:

The coterminal angle is 261°, which lies in quadrant III, with a reference angle of 99°.