Answer: 67.5 degrees
===========================================================
Explanation:
x = 3y since x is three times as large as y
The two variables must add to 90 degrees. This is because the angles are part of a right triangle, and they are the acute angles.
x+y = 90
3y+y = 90
4y = 90
y = 90/4
y = 22.5
x = 3y
x = 3*22.5
x = 67.5
