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Parallel and Perpendicular Lines 3
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Result
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Complete the two-column proof of the Converse of Alternate Exterior Angles Theorem. Identify the missing reason or justification. Type the letter of your answer in each blank.

Given:   18
Prove:   lm
Choices:
a. Same-Side Interior Angles Theorem
b. Definition of alternate interior angles
c. Definition of supplementary angles
d. Vertical Angles Theorem
e. Linear Pair Postulate
f. Subtraction Property of Equality
g. Transitive Property of Angle Congruence
h. Supplement Theorem
i. Converse of Alternate Interior Angles Theorem
j. Alternate Exterior Angles Theorem

Proof:
Statements Reasons
1.
18
1. Given
2.
14
58
2.
3.
54
3.
4.
4 and 5 are alternate interior angles.
4.
5.
lm
5.
0
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