Question

find the measure of angle 5.

Explanation:

Step1: Identify angle - pair relationship

Angle 5 and the 99 - degree angle are corresponding angles. When two parallel lines are cut by a transversal, corresponding angles are congruent.

Step2: Determine angle measure

Since angle 5 and the 99 - degree angle are corresponding angles, $m\angle5 = 99^{\circ}$.

Answer:

$99^{\circ}$