Question

I don't know how to do this?

Answer 1

p = a + b + c
22 = 8 + 5 + c
22 = 13 + c
22 - 13 = c
9 = c

a^2 + b^2 = c^2....a and b are the legs and c is the hypotenuse
8^2 + 5^2 = 9^2
64 + 25 = 81
89 = 81.......incorrect...no, this is not a right triangle