Answer
Chapter 2 - Section 2.3 Problem Set: 43 (Answer)
Refer to Figure I
$r = 16$ (To the nearest digit)
Work Step by Step
Chapter 2 - Section 2.3 Problem Set: 43 (Solution)
Refer to Figure I
In $\triangle$CDA,
$\cos 65^{\circ} = \frac{r}{r+x}$
$\cos 65^{\circ} = \frac{r}{r+22}$
$r = \frac{22\cos 65^{\circ}}{(1 - \cos 65^{\circ})}$
$r = 16$ (To the nearest digit)
