Geometry 6.2a, 4 Theorems of the Properties of Parallelograms

First published at 13:10 UTC on October 12th, 2018.

An explanation of the special properties of quadrilaterals, 4 theorems about those properties, a two-column proof for the first property that the opposite sides of a parallelogram are congruent, how two parallel lines cut by two transversals will ma…

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CategoryEducation
SensitivityNormal - Content that is suitable for ages 16 and over
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