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If ∠1 and ∠2 are equal, why are lines l and m are parallel.

a. Alternate Interior angles theorem
b. Corresponding angles postulate
c. Same Side Interior angles theorem
d. Alternate Exterior angles theorem

If ∠1 and ∠2 are equal, why are lines l and m are parallel. a. Alternate Interior-example-1

2 Answers

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Answer:

the answer is D (alternate exterior angles theorem)

User Fjarri
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The answer is D, the alternate exterior angles theorem.

Alternate, because the two angles are on opposite sides of line t.
Exterior, because both angles are outside of the parallel lines.

Therefore, alternate exterior angles theorem.
User Jcart
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