Given: | ∠1 ≅ ∠ 2 |
| ∠ 3 ≅∠ 4 |
Prove: | l || n |
PROOF | |
Statements | Reasons |
1. ∠1 ≅ ∠ 2 and ∠ 3 ≅ ∠ 4 | 1._____________ |
2._____________ | 2. If two lines intersect, the vertical ∠ s are ≅ |
3. ∠1 ≅ 4 | 3.________________ |
4. | 4. If two lines are cut by a transversal so that a pair of alternate exterior ∠ s are ≅, the lines are || |
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