Question

Have to find the side length of x for the following right triangle?
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Answer 1

x = 9

Explanation:

Pythagorean theorem:

`\sf (leg_1)^2 + (leg_2)^2 = hypotenuse^2`

`x^(2) + 12^2 = 15^2\\\\x^(2) + 144 = 225`

x² = 225 - 144

x² = 81

x² = 9²

x = 9

`\boxed{x = 9}`