Question

Find the length of the third side. If necessary, write in simplistic radical form.

Answer 1

7

Explanation:

Just use the Pythagorean Theorem (
`a^(2)`+
`b^(2)`=
`c^(2)`)

Let a be the missing side

`a^(2)`=
`8^(2)`-
`√(15) ^(2)`

`a^(2)`=
`64`-
`15`

`a^(2)`=
`49`

Take the square root of each side

`a`=
`√(49)`

`a`=
`7`

So the missing side is 7.

Hope this helps! :)