Triangle, 3 sides, Quadrilateral, 4 sides, Pentagon, 5 sides, Hexagon, 6 sides, Heptagon, 7 sides, Octagon, 8 sides, Nonagon, 9 sides, Decagon, 10 sides, Hendecagon, 11 sides, Dodecagon, 12 sides, Trapezoid, 4 vertices, 2 sides are slanted, Parallelogram, Opposite sides are parallel, Rhombus, 4 slanted sides, Square, a special rectangle, Rectangle, 2 long sides, 2 short sides.

Polygon Sort

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