Question

What is the missing side length of this right triangle? Type the answer in the box.

13 in.
5 in.
х
1

Answer 1

12 in

Explanation:

Using Pythagoras' theorem in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let x be the missing side , then

x² + 5² = 13²

x² + 25 = 169 ( subtract 25 from both sides )

x² = 144 ( take square root of both sides )

x =
`√(144)` = 12