akimadixon13
akimadixon13
02.01.2020 • 
Mathematics

Write a two-column proof for the following conjecture.
given: parallelogram abcd
prove: ∠a and ∠b are supplementary.
∠b and ∠c are supplementary.


Write a two-column proof for the following conjecture. given: parallelogram abcd prove:

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