Question

Can someone please help me with this?

Answer 1

It is shown as a right triangle, so we can use the Pythagorean theorem:

`a^(2) + b^(2) = c^(2)`

`15^(2) + x^(2) = 25^(2)`

`225 + x^(2) = 625`

`x^(2) = 400`

`x = 20`

We can use the Pythagorean theorem to verify:

`15^(2) + 20^(2) = 25^(2)`

`225 + 400 = 625`

`625 = 625`

This means X = 20