Proof: If Parallelogram Bisect

Let's prove the following theorem:

Proof:

Proof Table

#	Claim	Reason
1	△PYZ ≅ △PWX	if WXYZ is a parallelogram and m∠WPY = 180 and m∠XPZ = 180, then △PYZ ≅ △PWX (If Parallelogram Inner Congruent)
2	distance ZP = distance XP	if △PYZ ≅ △PWX, then distance ZP = distance XP (Congruent Triangles Property 9)

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