Finding the Perimeter of Non-Rectangular Parallelograms Using the Pythagorean Theorem
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ExploreLearning: GeoBoard - The Pythagorean Theorem
The ExploreLearning: Geoboard - Pythagorean Theorem Gizmo is a great interactive GeoBoard for drawing and demonstrating different types of polygons (in this case parallelograms). With the click of a button, you can display the length of all of the sides, the area, and any right angles.
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