Question

2 trig ratios missing sides and angels

Answer 1

D

Explanation:

Using the cosine ratio in the right triangle.

cos66° =
`(adjacent)/(hypotenuse)` =
`(13)/(x)` ( multiply both sides by x )

x × cos66° = 13 ( divide both sides by cos66° )

x =
`(13)/(cos66)` ≈ 32.0 ( to the nearest tenth )