Question

Find the length of the missing side.

Answer 1

8

Explanation:

Let's call the unknown side
`c`.

The Pythagorean Theorem states that in any right triangle,
`a^(2) + b^2 = c^2`

Now plug in the known values.

`6^2 + (2\sqrt 7)^2 = c^2\\36 + 4(7) = c^2\\36 + 28 = c^2\\64 = c^2\\c = √(64) = 8`