Question

Find the length of the third side. if necessary, round to the tenth

Answer 1

EXPLANATION

Given the right triangle, we can find the length of the third side by applying the Pythagorean Theorem:

Let's call x to the unknown side

`12^2+x^2=20^2`

Subtracting 12^2 to both sides:

`x^2=20^2-12^2`

Solving the powers:

`x^2=400-144=256`

Applying the square root to both sides:

`x=\sqrt[]{256}`

Simplifying:

`x=16`

The answer is x=16