Question

Which equation should you solve to find x?

Answer 1

C

Explanation:

Using the cosine ratio in the right triangle

cos24° =
`(adjacent)/(hypotenuse)` =
`(x)/(10)` → C

Note

sin24° =
`(opposite)/(hypotenuse)` =
`(4)/(10)` ( which does not include x )

tan24° =
`(opposite)/(adjacent)` =
`(4)/(x)` ≠
`(x)/(4)`