SOLUTION: HELP given: angle 1 and angle 2 are supplementary angle 3 and angle 2 are supplementary Prove: angle 1 and angle 3 are congruent

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Question 226070: HELP
given: angle 1 and angle 2 are supplementary
angle 3 and angle 2 are supplementary
Prove: angle 1 and angle 3 are congruent
Answer by solver91311(24713) About Me  (Show Source):
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1: : Definition of Supplementary

2: : Definition of Supplementary

3: : Addition Property of Equality (added to both sides of 1.)

4: : Addition Property of Equality (added to both sides of 2.)

5: : Transitive and symmetric Properties of Equality.

6: congruent to : Definition of congruence.


John