An outside angle is equal to the sum of the two opposite inside angles:
3x = 63 + x + 13
Simplify:
3x = x + 76
Subtract 1x from both sides:
2x = 76
Divide both sides by 2:
x = 76/2 = 38
Now replace x with 38 and solve for CVU:
CVU = 3x
CVU = 3(38)
CVU = 114 degrees.
