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Mathematics, 25.09.2020 02:01 kdlishs

VI. Given: angle 1 and angle 2 are supplementary Prove: angle 3 and angle 4 are supplementary

1, Given

2. Def. of supplementary angles

3. Vertical angles are congruent

4. Def. of congruent angles

5. Substitution

6. Def. of

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VI. Given: angle 1 and angle 2 are supplementary Prove: angle 3 and angle 4 are supplementary
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