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Finding the Perimeter of Non-Rectangular Parallelograms Using the Pythagorean Theorem

Online

ExploreLearning: GeoBoard - The Pythagorean Theorem

http://explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=221
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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