Question

Help! help! help! Find the lengths of the legs

Answer 1

2
`√(2)`

Explanation:

sin45=
`(x)/(4)` ( sin is opposite over hypotenuse )

multiply

4sin45=
`2√(2)`

cos45=
`(x)/(4)` ( cos is adjacent over hypotenuse )

multiply

4cos45= 2
`√(2)`

tip: in a 45-45-90 triangle, the sides are equivalent.