The measure of an angle is 168.2°. What is the measure of its supplementary angle?

Answer 1

The sum of two supplementary angles is 180°.

Let x be the measure of the supplementary angle.

Therefore, x + 168.2 = 180.

Subtracting 168.2 from both sides, we get x = 180 - 168.2 = 11.8.

Hence, the measure of the supplementary angle is 11.8°.