Question

1. lines a and b are parallel. what is the measure of angle 3?

Explanation:

Step1: Identify angle - relationship

Corresponding angles are equal for parallel lines. Angle 3 and the given 27 - degree angle are corresponding angles.

Step2: Determine angle measure

Since they are corresponding angles, $\angle3 = 27^{\circ}$.

Answer:

$27^{\circ}$