Question

Find the measure of angle A. Round your answer to the nearest whole number​

Answer 1

Answer:

∠ A ≈ 53°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan A = $\frac{opposite}{adjacent}$ = $\frac{BC}{AC}$ = $\frac{12}{9}$ , then

∠ A = $tan^{-1}$ ($\frac{12}{9}$ ) ≈ 53° ( to the nearest whole number )