Question

Find the missing side of the triangle.​

Answer 1

2
`√(10\\)`

Explanation:

Because this is a right triangle, we have:

`x^(2) + 3^(2) = 7^(2) (Pytago)\\x^(2) + 9= 49\\x^(2) =40\\x=√(40) \\x=2√(10)`