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Mathematics, 18.09.2019 01:00 dondre54

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 supplementar...
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