<span>supplementary angles sum = 180
</span>lets x = measure of angle Y
x + 3x = 180
4x = 180
x = 45
angle Y = 45
angle X = 3 x 45 = 135
answer
Angle X = 135
Answer:
11.9
Step-by-step explanation:
I just know this off the top of my head
The real one is 11.18034
I need a question ok this is the a question
