Question

Find x.
30
20
Need help with this question asap

Answer 1

Cos=adjacent/hypotenuse
Cos30=x/20
x=cos30 *20

Sorry I don’t have a calculator right now

Answer 2

x = 10
`√(3)`

Explanation:

Using the cosine ratio in the right triangle and the exact value

cos30° =
`(√(3) )/(2)` , then

cos30° =
`(adjacent)/(hypotenuse)` =
`(x)/(20)` =
`(√(3) )/(2)` ( cross- multiply )

2x = 20
`√(3)` ( divide both sides by 2 )

x = 10
`√(3)`