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Types of Polygons - - Geometry Help

For a complete lesson on types of polygons, go to - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn the definition of a polygon, as well as the definitions of concave and convex polygons. Students also learn the following polygon classifications: triangle (3 sides), quadrilateral (4 sides), pentagon (5 sides), hexagon (6 sides), heptagon (7 sides), octagon (8 sides), nonagon (9 sides), decagon (10 sides), dodecagon (12 sides).
Length: 01:53


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