Question

In ΔKLM, the measure of ∠M =90°, the measure of ∠K=,85°, and MK = 6.9 feet. Find the length of KL to the nearest tenth of a foot.

Answer 1

we can use the trigonometric identity of cosine, therefore

`\begin{gathered} \cos 85=(6.9)/(KL) \\ KL=(6.9)/(\cos 85) \\ KL=79.2 \end{gathered}`

Answer: KL is 79.2 feet