 ### Pentagonal Antiprism

Illustration of a pentagonal antiprism. An antiprism is formed by having two parallel congruent bases… ### Pentagonal Antiprism

Illustration of a pentagonal antiprism. An antiprism is formed by having two parallel congruent bases… ### Pentagonal Antiprism

Illustration of a pentagonal antiprism. An antiprism is formed by having two parallel congruent bases… ### Pentagonal Antiprism

Illustration of a pentagonal antiprism. An antiprism is formed by having two parallel congruent bases… ### Skewed Pentagonal Antiprism

Illustration of a skewed (non-right) pentagonal antiprism. An antiprism is formed by having two parallel… ### Pentagonal Bipyramid

Illustration of a pentagonal bipyramid. A bipyramid, or dipyramid, is formed by joining two congruent… ### Pentagonal Bipyramid

Illustration of a pentagonal bipyramid. A bipyramid, or dipyramid, is formed by joining two congruent… ### Pentagon Inscribed in Circle

Illustration of pentagon inscribed in circle. Or, circle circumscribed about pentagon. Illustration of polygon circumscribed about circle. Or, circle inscribed in the polygon. ### Polygon Inscribed in Circle

Illustration of polygon inscribed in circle. Or, circle circumscribed about the polygon. ### Cylinder Inscribed in Pentagonal Prism

Right circular cylinder inscribed in a pentagonal prism. Or, Pentagonal prism circumscribed about a… ### Prism inscribed in Cylinder

Illustration of a pentagonal prism inscribed in a cylinder. ### Similar Figures

2 pentagons that are similar figures ### Flashcard of a polygon with five equal sides

A flashcard featuring an illustration of a polygon with five equal sides ### Flashcard of a Pyramid with a Pentagonal Base

A flashcard featuring an illustration of a Pyramid with a Pentagonal Base ### Hexagon Inscribed in Circle by Construction

Illustration of regular hexagon and triangle inscribed in circle. ### Part of an Icosahedron

Illustration of the bottom part of an icosahedron. The base consists of a regular pyramid, upon which… ### Partial Construction of an Icosahedron

Illustration of the steps to a construction of an icosahedron. The base consists of a regular pyramid,… ### Pentagon

"A polygon of five sides." -—Hallock 1905 ### Construction Of A Pentagon On A Line

An illustration showing how to construct a pentagon on a given line without resort to its center. "From… ### Pentagon Inscribed & Circumscribed in Circles

Regular pentagon inscribed in a circle, circumscribed about a circle. ### Pentagon Constructed to be Similar to Given Pentagons

Illustration of a how to construct a pentagon similar to two given pentagons. ### Construction of Regular Pentagon

Illustration used to construct a regular pentagon on a given line. ### Cyclic Pentagon

Illustration of a cyclic pentagon, a pentagon inscribed in a circle. This can also be described as a… ### Pentagon Inscribed in Circle by Construction

Illustration of pentagon inscribed in circle. Or, circle circumscribed about pentagon. Construction… ### Involute of Pentagon

"An involute is a curve generated by unwrapping an inflexible chord from around a polygon. Thus the… ### 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. ### Regular Pentagon With Circle Inscribed

Illustration showing a circle inscribed in a regular pentagon. Or, a regular pentagon circumscribed… ### Pentagon With Triangular Sections For Area

Pentagon with dimensions labeled. Pentagon can be used to calculate area by calculating individual triangles… ### Pentagonal Dodecahedron

"This is bounded by twelve pentagonal faces, but these are not regular pentagons, and the angles over… ### Frustum of Pentagonal Pyramid

Illustration of a frustum of a pentagonal pyramid (including cross-section). ### Frustum Of A Pentagonal Pyramid

Illustration of a right pentagonal pyramid that has been cut by a plane parallel to the base. The top… ### Frustum Of A Pentagonal Pyramid

Illustration of a hollow pentagonal pyramid that has been cut by a plane parallel to the base. The top… ### Frustum Of A Pentagonal Pyramid

Illustration of a right pentagonal pyramid, with a height much larger than the edge lengths of the base,… ### Frustum Of A Pentagonal Pyramid

Illustration of a right pentagonal pyramid, with a height smaller than the edge lengths of the base,… ### Frustum Of A Pentagonal Pyramid

Illustration of a hollow pentagonal pyramid that has been cut by a plane parallel to the base. The top… ### Frustum Of A Skewed Pentagonal Pyramid

Illustration of a skewed pentagonal pyramid that has been cut by a plane parallel to the base. The top… ### 2 Concentric Pentagons

Illustration of 2 concentric pentagons. ### 2 Concentric Pentagons

Illustration of 2 concentric pentagons. ### 2 Congruent Rotated Pentagons

Illustration of 2 regular congruent pentagons that have the same center. One pentagon has been rotated… ### 3 Concentric Pentagons

Illustration of 3 concentric pentagons that are equally spaced. ### 4 Concentric Pentagons

Illustration of 4 concentric pentagons that are equally spaced. ### 4 Congruent Rotated Pentagons

Illustration of 4 regular congruent pentagons that have the same center. Each pentagon has been rotated… ### 8 Congruent Rotated Pentagons

Illustration of 8 regular congruent pentagons that have the same center. Each pentagon has been rotated… ### Congruent Pentagons

Illustration showing two congruent pentagons. ### Similar Pentagons

Illustration of 2 similar pentagons. ### Similar Pentagons

Illustration of 2 similar pentagons. ### 5-sided Polygon

Polygon consisting of 5 sides ### Crossed Polygon

Illustration of crossed polygon. This is not generally considered to be a real polygon. ### Fractions of 5-sided Polygon

1/5 of a 5 sided polygon ### Fractions of 5-sided Polygon

2/5 of a 5 sided polygon ### Fractions of 5-sided Polygon

3/5 of a 5 sided polygon ### Fractions of 5-sided Polygon

4/5 of a 5 sided polygon ### Fractions of 5-sided Polygon

5/5 of a 5 sided polygon ### Exterior Angles of Polygons

Illustration of a polygon with exterior angles drawn.