Proof: If Parallelogram Then Sides Congruent 2

Let's prove the following theorem:

if WXYZ is a parallelogram, then distance ZW = distance YX

Z W X Y

Proof:

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Given
1 WXYZ is a parallelogram
Proof Table
# Claim Reason
1 distance WZ = distance XY if WXYZ is a parallelogram, then distance WZ = distance XY
2 distance ZW = distance YX if distance WZ = distance XY, then distance ZW = distance YX

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