Question

when lines intersect, they form congruent angles and supplementary angles. without using a protractor, can you tell which angle is congruent to ∠1? ∠4 vertical angles are always congruent. name another pair of vertical angles in the figure. ∠2 and ∠4 ∠2 and ∠3 ∠5 and ∠7 ∠5 and ∠6 are vertical angles.

Explanation:

Step1: Recall vertical angles property

Vertical angles are formed when two lines intersect. They are opposite each other and are congruent.

Step2: Identify vertical angle of ∠1

Looking at the figure, ∠1 and ∠3 are vertical angles.

Answer:

∠3