Question

finding the measure of an angle of elevation
what is the measure of the angle of elevation from point l to point j?
37°
45°
53°
137°

Explanation:

Step1: Identify right triangle angles

$\triangle LKJ$ is right-angled at $K$, so $\angle L + \angle J = 90^\circ$.

Step2: Find alternate angle to $\angle J$

The horizontal line at $J$ makes $53^\circ$ with $LJ$, so $\angle J = 53^\circ$.

Step3: Calculate $\angle L$

$\angle L = 90^\circ - 53^\circ = 37^\circ$

Answer:

$37^\circ$ (Option A)