Question

How do you find the missing side a given 12mm, 15mm right triangle using the Pythagorean Theorem?

Answer 1

The question doesn't state if you are looking for the hypotenuse or not.
If you are:
`a^2+b^2=c^2`
`12^2+15^2=c^2`
`c=sqrt369`

If you already have the hypotenuse:
`c^2-b^2=a^2`
`15^2-12^2=a^2`
`a=sqrt84`