Question

The figure below shows a straight line AB intersected by another straight line t.



Write a paragraph to prove that the measure of angle 1 is equal to the measure of angle 3.

Answer 1

The lines AB and t are intersecting lines. Angles 1 and 3 are vertical angles. The vertical angle theorem says that vertical angles are congruent. That proves that angle 1 is congruent to angle 3.

Answer 2

Thanks lol, I had already figured it out, but thanks for coming by and checking.