## Trigonometry 7th Edition

Chapter 2 - Section 2.3 Problem Set: 44 (Answer) Refer to Figure I $r = 36$ (To the nearest digit)
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)