

Prove a quadrilateral is a parallelogramCriteria needed to prove a shape is a parallogramProperties of parallelograms: Angles  Sides  Diagonals Interactive Parallelogram  top Types of Parallelograms: rectangle  rhombus  square  rectangle vs. square  comparison of properties of each type of parallogram  Criteria prove quadrilateral is a parallelogram Minimum criteria needed to prove a quadrilateral is a parallelogram
