X = 15
y = 21
First, solve for x on the right side triangle by adding angles and equaling to 180.
Now since you know the x value, solve the middle angle for the left side triangle. Add all angle on left triangle and equal them to 180.
Check out the pic.
If the width of the rectangle is 254, then its perimeter is (508) + ( 2 times its length).
The numerator is like the divided and the denominator is like the divident.