Proof: Collinear Then Equal 2 Lines 2
Let's prove the following theorem:
if m∠ADC = 180 and m∠BEC = 180, then m∠BCA = m∠ECD
Proof:
Proof Table
# | Claim | Reason |
---|---|---|
1 | m∠ACB = m∠DCE | if m∠ADC = 180 and m∠BEC = 180, then m∠ACB = m∠DCE |
2 | m∠BCA = m∠ECD | if m∠ACB = m∠DCE, then m∠BCA = m∠ECD |
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