Question

What is the length of the missing leg?

Answer 1

`a=12`

Explanation:

Pythagorean Theorem:
`a^(2)+b^(2)=c^(2)`

In this case, a = 9, b = a, and c = 15.

`9^(2)+a^(2)=15^(2)`

`81+a^(2)=225`

The, we subtract 81 from both sides getting:

`a^(2)=144`,

Then,
`a=12`