Question

the equation $\tan^{-1}(\frac{8.9}{7.7}) = x$ can be used to find the measure of angle lkj. what is the measure of angle lkj? round to the nearest whole degree. 41° 45° 49° 55°

Explanation:

Step1: Calculate the ratio

$\frac{8.9}{7.7} \approx 1.1558$

Step2: Find arctangent of the ratio

$\tan^{-1}(1.1558) \approx 49^\circ$

Answer:

C. 49°