Question

how do you user the Pythaorean Theorem

Answer 1

Basically this:

Answer 2

if you have:
1) a right triangle (it has a 90 degree angle)
2) you know the lengths of two (out of three) sides

then: you can find the 3rd side

Answer 3

Another way of using it is combining standard deviations together :b

Answer 4

Thanks