Proof: Alternate Interior Angles Theorem (Converse) 5

Let's prove the following theorem:

if WX || YZ, then m∠ZYX = m∠YXW

W X Y Z

Proof:

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Given
1 WX || YZ
Proof Table
# Claim Reason
1 m∠WXY = m∠XYZ if WX || YZ, then m∠WXY = m∠XYZ
2 m∠ZYX = m∠YXW if m∠WXY = m∠XYZ, then m∠ZYX = m∠YXW

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