Question

Someone help me please

Answer 1

`√(60)`

Explanation:

Use the Pythagorean theorem a^2 + b^2 = c^2

In this case you are given a and c, so set the equation up like

2^2 + b^2 = 8^2

b^2 = 8^2 - 2^2

b =
`\sqrt{8^(2) -2^(2) }`

b =
`√(60)`