Fill in the blank with the phrase that makes the proof statement true.

Given that angle 1 is congruent to angle 3 and that _________ beachside vertical angles are congruent.

A) the two lines bisect each other

B) angle 1 is congruent to angle 4

C) angle 2 is congruent to angle 3

D) the two lines are perpendicular

Fill in the blank with the phrase that makes the proof statement true Given that angle 1 is congruent to angle 3 and that beachside vertical angles are congruen class=