Instructional Video

Khan Academy: Geometry: Proof: Diagonals of Parallelogram Bisect Each Other

Curated by ACT

Demonstrates how to prove that the diagonals of a parallelogram bisect each other based on knowledge of the special angles created when parallel lines are cut by a transversal and the triangle congruency postulates. [9:06]

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CCSS: Adaptable
Common Core