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Complete the two column proof

Complete the two column proof-example-1

2 Answers

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Answer:

B is the sum of adjacent angles is 180 degrees

Explanation:

It is showing you that m∠3 and m∠4 "=" 180

User Thomas Wouters
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4 votes

a. is Substitution Property

b. might be definition of supplementary angles

User Markus Kauppinen
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