Question

Use the diagram to find the value of x to the nearest tenth of a foot.

Answer 1

Answer:

a

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan15° = $\frac{opposite}{adjacent}$ = $\frac{20}{x}$ ( multiply both sides by x )

x × tan15° = 20 ( divide both sides by tan15° )

x = $\frac{20}{tan15}$ ≈ 74.6 ft ( to the nearest tenth of a foot )