Question

I need help doing thissss!!!

Answer 1

9

Explanation:

`| √(130 \: ) | { \: }^(2) \: = |7| {}^(2) + |x| { \\ }^(2) \\`

= 130=49+x²

=130-49=x²

=81=x²

`√(81 \: ) = x \\ x = 9`

Therefore the third side is 9