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Step-by-step guide:1. Have participants draw triangles to partition their polygons. Be sure to discuss the word partition. It is important in mathematics. The green lines on the irregular hexagon illustrate how this is done. Possible Problems and
Concerns:It is important participants use line segments from vertex to vertex to ensure that they are working with the minimum number of triangles per polygon. That is, they should not create new points on the sides. http://www.mste.uiuc.edu/m2t2/algebra/nonregs2.gsp is a Geometer's Sketchpad file of the irregular polygons at the right. |

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