Question

Whats the answer for this oneeeeeeb

Answer 1

x ≈ 229.8

Explanation:

using the cosine ratio in the right triangle

cos72° =
`(adjacent)/(hypotenuse)` =
`(LM)/(KM)` =
`(71)/(x)` ( multiply both sides by x )

x × cos72° = 71 ( divide both sides by cos72° )

x =
`(71)/(cos72)` ≈ 229.8 ( to the nearest tenth )