'Parallelogram properties' presentation slideshows

Parallelograms

Parallelograms. Geometry Regular Program SY 2014-2015. Source: Discovering Geometry (2008) by Michael Serra Geometry (2007) by Ron Larson. Definitions.

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2.3d:Quadrilaterals

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Quadrilaterals

Quadrilaterals. Types of quadrilaterals. Types of parallelograms. Problems. Parallelogram properties. Proving that ABCD is a parallelogram. If ABCD is a quadrilateral, then how can we prove that it is also a parallelogram?. We must prove that both pairs of opposite sides are parallel.

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