Question

Solve for u, show all work

Answer 1

u = 2
`√(3)`

Explanation:

using the sine ratio in the right triangle and the exact value

sin60° =
`(√(3) )/(2)` , then

sin60° =
`(opposite)/(hypotenuse)` =
`(u)/(4)` =
`(√(3) )/(2)` ( cross- multiply )

2u = 4
`√(3)` ( divide both sides by 2 )

u = 2
`√(3)`