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GeoGebra

6.1.4 Classwork

Author:Natalie Knez , IM 6 – 8 Math, GeoGebra Classroom Activities
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Figures A, B, and C are parallelograms. Figures D, E, and F are not parallelograms. Study the examples and non-examples.  What do you notice about the number of sides that a parallelogram has?

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Find the area of this parallelogram on the left. Explain your reasoning.

Change the parallelogram by dragging the green points at its vertices. Then find its area and explain your reasoning.

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Find the area of each parallelogram. Show your reasoning.

Find the area of this parallelogram. Explain your reasoning.

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