Question

Find the value of x. Write your answer in simplest radical form, if necessary.

Х
22
25

Answer 1

Explanation:

x=√(141)

that is the answer

Answer 2

x =
`√(141)`

Explanation:

Using Pythagoras' identity in the right triangle.

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

x² + 22² = 25²

x² + 484 = 625 ( subtract 484 from both sides )

x² = 141 ( take square root of both sides )

x =
`√(141)`