Triangle, -3 sides -3 vertices, Pentagon, -5 sides -5 vertices, Hexagon, -6 sides -6 vertices, Heptagon, -7 sides -7 vertices, Octagon, -8 sides -8 vertices, Nonagon, -9 sides -9 vertices, Decagon, -10 sides -10 vertices, Undecagon, -11 sides -11 vertices, Dodecagon, -12 sides -12 vertices, Trapezoid, -1 set of parallel sides, Paralellogram, -2 sets of parallel lines, Square, -4 sides -4 vertices -All sides equal in length -Opposite sides equal -4 square corners, Rhombus, -4 sides -4 vertices -Opposite sides equal in length -Opposite corners equal, Rectangle, -4 sides -4 vertices -Opposite sides equal in length -4 square corners

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