Remark
The two sides of a 45 45 90 triangle are both equal and both are x. Use the Pythagorean Theorem to find the length of the hypotenuse.
Solution
Let the hypotenuse = x
x^2 + x^2 = h^2
2x^2 = h^2 Take the square root of both sides.
sqrt(2x^2) = sqrt(h^2)
h = sqrt(2)*x or x*sqrt(2) answer
