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

User Taba
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1 Answer

11 votes

Answer: 135

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

User DerLola
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