 ### Geometric Solid with Circular Base

An illustration of a prismatoid with circular base. ### Irregular Concave Heptagon

Illustration of an irregular concave heptagon. ### Irregular Convex Heptagon

Illustration of an irregular convex heptagon. This polygon has some symmetry. ### Irregular Convex Heptagon

Illustration of an irregular convex heptagon. This polygon has some symmetry. ### Irregular Convex Heptagon

Illustration of an irregular convex heptagon. This polygon has some symmetry. ### Irregular Convex Heptagon

Illustration of an irregular convex heptagon. This polygon has some symmetry. ### Irregular Convex Heptagon

Illustration of an irregular convex heptagon. ### Concave Equilateral Hexagon

Illustration of a concave equilateral hexagon. ### Cyclic Hexagon

Illustration of a cyclic hexagon, a hexagon inscribed in a circle. This can also be described as a circle… ### Cyclic Hexagon

Illustration of a cyclic hexagon, a hexagon inscribed in a circle. This can also be described as a circle… ### Irregular Concave Hexagon

Illustration of an irregular hexagon. This is also an example of a concave polygon. ### Irregular Concave Hexagon

Illustration of an irregular hexagon. This is also an example of a concave polygon with symmetry. ### Irregular Concave Hexagon

Illustration of an irregular hexagon. This is also an example of a concave polygon with symmetry. ### Irregular Concave Hexagon

Illustration of an irregular hexagon. This is also an example of a concave polygon with symmetry. ### Irregular Convex Hexagon

Illustration of an irregular convex hexagon. ### Irregular Convex Hexagon

Illustration of an irregular convex hexagon with symmetry. ### Regular Hexagon With Segments

Illustration of a regular hexagon with each side divided into thirds by line segments extended to the… ### 2 Concentric Hexagons

Illustration of 2 regular concentric hexagons. ### 2 Concentric Hexagons

Illustration of 2 regular concentric hexagons. ### 2 Concentric Hexagons With Tangent Circles

Illustration of 2 regular concentric hexagons with 6 congruent circles placed between the hexagons so… ### 3 Concentric Hexagons

Illustration of 3 regular concentric hexagons that are equally spaced. ### 4 Concentric Hexagons

Illustration of 4 regular concentric hexagons that are equally spaced. ### Irregular Concave Nonagon

Illustration of a nonregular/irregular convcave nonagon. A nonagon is a closed geometric figure with… ### Irregular Concave Nonagon

Illustration of a nonregular/irregular convcave nonagon. A nonagon is a closed geometric figure with… ### Irregular Concave Nonagon

Illustration of a nonregular/irregular convcave nonagon. A nonagon is a closed geometric figure with… ### Irregular Convex Nonagon

Illustration of a nonregular/irregular convex nonagon. A nonagon is a closed geometric figure with 9… ### Irregular Convex Nonagon

Illustration of a nonregular/irregular convex nonagon. A nonagon is a closed geometric figure with 9… ### Regular Nonagon

Illustration of a regular nonagon. A nonagon is a closed geometric figure with 9 sides. A regular nonagon… ### 2 Concentric Nonagons

Illustration of 2 regular concentric nonagons. ### 2 Concentric Nonagons

Illustration of 2 regular concentric nonagons. ### 2 Congruent Rotated Nonagons

Illustration of 2 regular congruent nonagons that have the same center. One nonagon has been rotated… ### 3 Concentric Nonagons

Illustration of 3 regular concentric nonagons that are equally spaced. ### 4 Concentric Nonagons

Illustration of 4 regular concentric nonagons that are equally spaced. ### Octagon Circumscribed About a Square

Illustration of a regular octagon circumscribed about a square. This could also be described as a square… ### Concave Equilateral Octagon

Illustration of a concave equilateral octagon. ### Irregular Concave Octagon

Illustration of an irregular concave octagon. This polygon has some symmetry. ### Irregular Concave Octagon

Illustration of an irregular concave octagon. ### Irregular Concave Octagon

Illustration of an irregular concave octagon. This polygon has some symmetry. ### Irregular Concave Octagon

Illustration of an irregular concave octagon. This polygon has some symmetry. ### Irregular Convex Octagon

Illustration of an irregular convex octagon. This polygon has some symmetry. ### Irregular Convex Octagon

Illustration of an irregular convex octagon. This polygon has some symmetry. ### Irregular Convex Octagon

Illustration of an irregular convex octagon. ### Irregular Convex Octagon

Illustration of an irregular convex octagon. This polygon has some symmetry. ### Irregular Convex Octagon

Illustration of an irregular convex octagon. This polygon has some symmetry. ### 2 Concentric Octagons

Illustration of 2 regular concentric octagons. ### 2 Concentric Octagons

Illustration of 2 regular concentric octagons. ### 3 Concentric Octagons

Illustration of 3 regular concentric octagons that are equally spaced. ### 4 Concentric Octagons

Illustration of 4 regular concentric octagons that are equally spaced. ### Cyclic Pentagon

Illustration of a cyclic pentagon, a pentagon inscribed in a circle. This can also be described as a… ### Irregular Concave Pentagon

Illustration of an irregular pentagon. This is also an example of a concave polygon with symmetry. ### Irregular Concave Pentagon

Illustration of an irregular concave pentagon. ### Irregular Convex Pentagon

Illustration of an irregular pentagon. This is also an example of a convex polygon with symmetry. ### Irregular Convex Pentagon

Illustration of an irregular pentagon. This is also an example of a convex polygon with symmetry. ### Irregular Convex Pentagon

Illustration of an irregular convex pentagon. ### Crossed Polygon

Illustration of crossed polygon. This is not generally considered to be a real polygon. ### Crossed Polygon

Illustration of crossed polygon. This is not generally considered to be a real polygon. ### Crossed Polygon

Illustration of crossed polygon. This is not generally considered to be a real polygon. ### Crossed Polygon

Illustration of crossed polygon. This is not generally considered to be a real polygon. ### Irregular Convex Polygon

Illustration of an irregular convex polygon with 16 sides that has symmetry. It could be used to show… ### Prismatoid With 2 Circular Bases

An illustration of a prismatoid with 2 circular bases.