Proof: If Isosceles Trapezoid Angles Congruent 2

Let's prove the following theorem:

Proof:

Proof Table

#	Claim	Reason
1	m∠ZWX = m∠WXY	if quadrilateral WXYZ is an isosceles trapezoid, then m∠ZWX = m∠WXY (If Isosceles Trapezoid Angles Congruent)
2	m∠ZWX = m∠YXW	if m∠ZWX = m∠WXY, then m∠ZWX = m∠YXW (Angle Symmetry Example)

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