Question

What is the value of x?

Answer 1

x = 41 cm

Here is why:

For this question we have to use the pythagorean theorem, which is used for right triangles. The hypotenuse will always be the last in this theorem.

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

Plug in.

`9^2+40^2=c^2`

`81+1,600=c^2`

Add together.

`1,681=c^2`

Now we will find the square root of 1,681, since c is squared.

`√(1,681)`

= 41 cm