1. B
2. D
3. A
4. C
5. A
6. A
7. D
8. D

13.If m∠5 = 95, what is m∠2?

A. 75

B. 85

C. 95

D. 105

14. If ∠3 and ∠4 are corresponding angles and m∠3 = 75, what is m∠4?

A. 75

B. 85

C. 95

D. 105

15. Two angles are supplementary. If one of the two angles is ∠4 which measures 79, find the other angle with its corresponding measure.

A. ∠1 ; 101

B. ∠2 ; 79

C. ∠2 ; 79

D. ∠7 ; 101

16. What is m∠4 if m∠7 = 80?

A. 70

B. 80

C. 90

D. 100

17. Which of the following is m∠1 if ∠6 = 98°?

A. 82

B. 90

C. 98

D. 102

18. ∠8 and ∠5 are congruent. If m∠5 = 91, what is m∠8?

A. 89

B. 91

C. 93

D. 95

19. If m∠1 = 110, is it correct to say that m∠4 = 70? Justify your answer.

A. No, because ∠1 and ∠4 are corresponding angles and they are congruent, thus, m∠4 = 110.

B. No, because ∠1 and ∠4 are interior angles on the same side of the transversal and they are congruent, thus, m∠4 = 110.

C. Yes, because ∠1 and ∠4 are alternate exterior angles and they are supplementary, thus, m∠4 = 70.

D. Yes, because ∠1 and ∠4 are exterior angles on the same side of the transversal and they are supplementary, thus, m∠4 = 70.

20. When two parallel lines are cut by a transversal, ∠1 becomes supplementary to ∠2. Which of the following could be true?

A. ∠1 and ∠2 are alternate – exterior angles.

B. ∠1 and ∠2 are alternate – interior angles.

C. ∠1 and ∠2 are corresponding angles.

D. ∠1 and ∠2 are interior angles on the same side of the transversal.