Question

Find the missing side. Round to the nearest tenth

Answer 1

A

Explanation:

using the sine ratio in the right triangle

sin73° =
`(opposite)/(hypotenuse)` =
`(20)/(x)` ( multiply both sides by x )

x × sin73° = 20 ( divide both sides by sin73° )

x =
`(20)/(sin73)` ≈ 20.9 ( to the nearest tenth )