X + x - 32 = 180
2x - 32 = 180
2x = 212
x = 106
x - 32 = 106 - 32 = 74
the other 2 angles = 90
Answer:
Step-by-step explanation:
I'm going to use a Pythagorean identity to help make this make sense.

We are given that cos(0) = 1, so
cos²θ = 1² which simplifies to
cos²θ = 1. So filling into our trig identity:
sin²θ + 1 = 1 and
sin²θ = 0 then
sinθ = √0 so
sinθ = 0
so
sin(0) = 0
Answer:
Let's call the length x. Since perimeter = 2 * (length + width) we can write:
6 = 2(x + 1/2)
3 = x + 1/2
x = 2 and 1/2
The answer is 2 and 1/2 miles long.