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6:59
Study.com
Yuanxin (Amy) Yang Alcocer
Proving a Quadrilateral is a Parallelogram | Proofs & Examples
This lesson shows a type of quadrilaterals with specific properties called parallelograms. It brings theorems and characteristics that show how to verify if a four-sided polygon is a parallelogram.
18K views
Dec 21, 2017
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