Question

Learn with an example
Find the measure of a negative angle coterminal with 90°.

Answer 1

-270 is the smallest negative possible angle.

Explanation:

Cotrrminal Angle have been period of 360 degrees.

Since we won't it to be negative, we subtract 360.

`90 - 360 = - 270`

We can keep going infinitely if we want to.

`- 270 - 360 = - 630`

Or so on...