Question

Findthe value of x using trigonometry. Round answer to the nearest tenth​

Answer 1

x ≈ 20.0

Explanation:

using the cosine ratio in the right triangle

cos26° =
`(adjacent)/(hypotenuse)` =
`(18)/(x)` ( multiply both sides by x )

x × cos26° = 18 ( divide both sides by cos26° )

x =
`(18)/(cos26)` ≈ 20.0 ( to the nearest tenth )