## Trigonometry 7th Edition

$33^{\circ}$
Let $\theta$ be the angle between the ladder and the wall. Then, $\tan\theta=\frac{opposite\,side}{adjacent\,side}=\frac{4.5\,ft}{7.0\,ft}=0.64$ $\theta=\tan^{-1}(0.64)=33^{\circ}$