Question

Find the length of the missing side. Give your answer in the simplest radical form.

Answer 1

x =
`2√(5)`

Explanation:

Use Pythagorean theorem,

Hypotenuse² = base² + altitude²

x² = (√8)² + 4²

= 8 + 16

= 20

x = √20 =
`√(2*2*5) = 2√(5)`

x =
`2√(5)`