Proof: Equiangular Then Equilateral

Let's prove the following theorem:

if m∠ZYX = m∠YZX, then distance XY = distance XZ

Z X Y

Proof:

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Given
1 m∠ZYX = m∠YZX
Proof Table
# Claim Reason
1 distance XY = distance XZ if m∠ZYX = m∠YZX, then distance XY = distance XZ

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