Question

Find the length of side xx in simplest radical form with a rational denominator.

Answer 1

`x = (3)/( √(2) )`

Explanation:

`{x}^(2) + {x}^(2) = {3}^(2) \\ 2 {x}^(2) = 9 \\ {x}^(2) = (9)/(2) \\ x = (3)/( √(2) ) \\ x = 2.121`