Chapter 8.4, Problem 3CYU

To determine

The value of $\cos A$

Answer to Problem 3CYU

  $\cos A=0.60$

Explanation of Solution

Given:

The given figure is:

Calculation:

The value of $\cos A$ will be: $\begin{array}{l}\cos A=\frac{B}{H}\\ \cos A=\frac{12}{20}\\ \cos A=\frac{3}{5}\\ \cos A=0.60\end{array}$