Question

1. what is the measure of angle abe? (lesson 1 - 19)

Explanation:

Step1: Identify vertical - angle relationship

Vertical angles are equal. Angle ABE and the given 50 - degree angle are vertical angles.

Step2: Determine the measure of angle ABE

Since vertical angles are congruent, the measure of angle ABE is equal to the measure of the given angle.

Answer:

$50^{\circ}$