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Perplexing Parallelograms

Perplexing Parallelograms

This geometry lesson from Illuminations asks students to draw two line segments through a point on the diagonal of a parallelogram and parallel to the sides. Students will examine a geometric shape, analyze the patterns of the shape, and create conjectures, which they will then try to prove or disprove. The material is appropriate for grades 9-12 and should require 1 class period to complete.... Show More

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