Question

Angles X and Y are supplementary. Angle X is 3 times the measure of angle Y. What is the measure of angle X?

Answer 1

Answer: 135

Step-by-step explanation:

Let the measure of angle y = a, then the measure of angle x = 3a

Supplementary angles mean they sum to 180 degrees, therefore

3a+a = 180

4a = 180

a = 45

The measure of angle x = 3a = 3*45 = 135