4. Which of the following could be thereason to prove that ∠4 ≅ ∠6?

Vertical angles are congruent.
Corresponding angles are congruent.
Alternate interior angles are congruent.
Supplementary angles are congruent.



5. Which of the following could be the reason to prove that ∠2 ≅ ∠4?

Alternate interior angles are congruent.
Corresponding angles are congruent.
Alternate exterior angles are congruent.
Vertical angles are congruent.


6. Which of the following statements is justified by the reason, “same side exterior angles are supplementary?”

m∠1 + m∠7 = 180°
m∠4 + m∠5 = 180°
m∠2 + m∠7 = 180°
m∠2 + m∠6 = 180°



7. What would be the reason to prove that ∠3 ≅ ∠7?

Alternate exterior angles are congruent.
Vertical angles are congruent.
Corresponding angles are congruent.
Alternate interior angles are congruent.