Question

(30 points) Solve for the missing side of the triangle. Round to the hundredths place if needed.

Answer 1

`6 √(6)`

Explanation:

The square value of hypotenuse is equal to the square value of sum of the two legs:

`{15}^(2) + {x}^(2) = {21}^(2)`

225 + x^2 = 441 subtract 225 from both sides

x^2 = 216 find the root of both sides

x = 6√(6)