Question

Find the exact length of the third side.

Answer 1

b=6.708

Explanation:

Use the pythagorean theorem to solve.
`a^(2) +b^(2) =c^(2)`

`6^(2) +b^(2) =9^(2)`

`36+b^(2) =81`

`b^2=45`

`\sqrt{b^(2) } =√(45)`

`b=3√(5)`

`b=6.708`