Question

A right triangle has legs of lengths 2 and 4. Find the exact length of the hypotenuse.

If the answer is not a whole number, leave it in square root form.

Answer 1

`\sqrt{ {2}^(2) + {4}^(2) } = √(4 + 16) = √(20) = 2 √(5)`

Answer 2

`\sqrt20`

Explanation:

Use the Formula
`a^(2) + b^(2) = c^(2)`

`2^(2) + 4^(2) = √(20)`

Answer for the k12 Quiz

Hope that helps!