Hi Ysa,

The measure of an angle and the measure of its complement add to $90^{o}.$ Look at our answer to an earlier question to see why complement has this meaning.

Let the measure of your angle be $x^{o}.$ What is the measure of its complement? Use the fact that "the measure of your angle is twice the measure of its complement" to develop an equation for $x.$ Solve for $x.$

Make sure you check your answer. Is the measure of the angle you found twice the measure of its complement?

Penny