Answer
Chapter 2 - Section 2.3 Problem Set: 44 (Answer)
Refer to Figure I
$r = 36$ (To the nearest digit)
Work Step by Step
Chapter 2 - Section 2.3 Problem Set: 44 (Solution)
Refer to Figure I
In $\triangle$CDA,
$\sin 45^{\circ} = \frac{r}{r+x}$
$\sin 45^{\circ} = \frac{r}{r+15}$
$r = \frac{15\sin 45^{\circ}}{(1 - \sin 45^{\circ})}$
$r = 36$ (To the nearest digit)
