4. Which of the following could be the
reason to prove that ∠4 ≅ ∠6?
A. Vertical angles are congruent.
B. Corresponding angles are congruent.
C. Supplementary angles are
congruent.
D. Alternate interior angles are
congruent.
5. Which of the following could be the reason to prove that ∠2 ≅ ∠4?
A. Vertical angles are congruent.
B. Corresponding angles are congruent.
C. Alternate exterior angles are congruent.
D. Alternate interior angles are congruent.
6. Which of the following statements is justified by the reason, “same side
exterior angles are supplementary?”
A. m∠4 + m∠5 = 180° C. m∠2 + m∠6 = 180°
B. m∠2 + m∠7 = 180° D. m∠1 + m∠7 = 180°
7. What would be the reason to prove that ∠3 ≅ ∠7?
A. Vertical angles are congruent.
B. Corresponding angles are congruent.
C. Alternate interior angles are congruent.
D. Alternate exterior angles are congruent.