Chapter 8.6, Problem 5WE

To determine

To calculate: $x$ and $y$.

Answer to Problem 5WE

  $x=28\text{ units},y=10\text{ units}$ .

Explanation of Solution

Given information:

  

Calculation:

From the given figure,

  $\sin 70°=\frac{x}{30}$ ,

  $\Rightarrow x=28.$

Now again from the same figure, $\tan 70°=\frac{x}{y}$ ,

  $\Rightarrow y=10$ .

Hence, the value of $x$ is 28 units and that of $y$ is 10 units.