Chapter 2 - Acute Angles and Right Triangles - Section 2.3 Finding Trigonometric Function Values Using a Calculator - 2.3 Exercises - Page 63: 34

$\theta$ $\approx$ 77.83135944$^{\circ}$

$\cot$ $\theta$ = 0.21563481 Therefore: $\tan$ $\theta$ = $\frac{1}{cot\theta}$ $\tan$ $\theta$ = $\frac{1}{0.21563481}$ $\tan$ $\theta$ = 4.63747017 $\theta$ = $\tan$$^{-1}$ 4.63747017 Utilizing the calculator: $\theta$ $\approx$ 77.83135944$^{\circ}$