Chapter 8, Problem 18MCQ

To determine

The value of $\cos M$ .

Answer to Problem 18MCQ

  $\cos M=0.92$

Explanation of Solution

Given:

The given triangle is:

  

Calculation:

The value of $\cos M$ will be:

  $\begin{array}{l}\cos M=\frac{Adj.}{Hyp.}\\ \cos M=\frac{36}{39}\\ \cos M=\frac{12}{13}\\ \cos M=0.92\end{array}$