hexagon

trapezoid,square,rectangle,rhombus,parallelogram

triangle, quadrilateral, pentagon, hexagon, heptagon, octagon, nonagon, decagon, undecagon, dodecagon

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hexagon

trapezoid,square,rectangle,rhombus,parallelogram

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Circle

Triangle

Quadrilateral

Pentagon

Hexagon

And so on.. (7-sided polygons, 8-sided and so on -sorry if I can't name them all)

Convex and Concave Polygons

Every polygon is either convex or concave. The

difference between convex and concave polygons

lies in the measures of their angles.