math
posted by jennifer .
The diagonal brace of a shipping crate is 53 inches. The length of the shipping crate is 45 inches. Find the height of the shipping crate.
if i would use a^2+b^2=c^2
would it be 53^2+45^2=c^2
is this right

That can't be right because the height would be longer than the diagonal brace.
You're correct in using the Pythagorean Theorem, but let
a = height
b = length
c = diagonal 
so would i set it up as
45^2 + 53^2 = H^2?
not sure then how to set up, been working on this one awhile now. 
a^2 + 45^2 = 53^2
a^2 + 2025 = 2809
a^2 = 784
a = 28 
Thank you!

You're welcome.