Question

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

Answer 1

Explanation:

There are a couple of ways to solve this...this right triangle has two legs of length x and hypotenuse of 9 units

Use Pythagorean theorem:

x^2 + x^2 = 9^2

x = 9/sqrt2 = 9 sqrt (2) / 2