Answer :
The quadrilateral wxyz has four sides
The additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ
How to prove that wxyz is a parallelogram?
For a shape to be a parallelogram, the folllowing must be true
- The shape must be a quadilateral
- The opposite sides of the shape must be congruent
- The opposite sides of the shape must be parallel
Hence, the additional fact that would prove that quadrilateral wxyz is a parallelogram is that XY = WZ
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