Proof: Rhombus With Right Angle is Square

Let's prove the following theorem:

Proof:

Proof Table

#	Claim	Reason
1	WXYZ is a parallelogram	if WXYZ is a rhombus, then WXYZ is a parallelogram (Rhombus Property)
2	WXYZ is a rectangle	if WXYZ is a parallelogram and ∠WXY is a right angle, then WXYZ is a rectangle (Parallelogram Property)
3	distance WX = distance XY	if WXYZ is a rhombus, then distance WX = distance XY (Rhombus Property)
4	WXYZ is a square	if WXYZ is a rectangle and distance WX = distance XY, then WXYZ is a square (Square Property)

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