### Heptagonal/Septagonal Antiprism

Illustration of a heptagonal, or sometimes known as a septagonal antiprism. An antiprism is formed by…

### Heptagonal/Septagonal Antiprism

Illustration of a heptagonal, or sometimes known as a septagonal antiprism. An antiprism is formed by…

### Skewed Heptagonal/Septagonal Antiprism

Illustration of a skewed (non-right) heptagonal, or sometimes known as a septagonal antiprism. An antiprism…

### Septagonal/Heptagonal Bipyramid

Illustration of a septagonal bipyramid. A bipyramid, or dipyramid, is formed by joining two congruent…

### Frustum Of A Decagonal Pyramid

Illustration of a hollow septagonal/heptagonal pyramid that has been cut by a plane parallel to the…

### Flashcard of a polygon with seven equal sides

A flashcard featuring an illustration of a polygon with seven equal sides

### Heptagon

"A polygon of...seven sides [is] a heptagon." —Hallock 1905

### Construction Of A Heptagon

An illustration showing how to construct a heptagon, or septagon. "The appotem a in a hexagon is the…

### Construction of Regular Heptagon in a Circle

Illustration of beginning of construction of a regular heptagon in a circle.

### Irregular heptagon

Illustration of an irregular polygon/heptagon/septagon.

### 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.

### Crossed Polygon

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

### Heptagonal/Septagonal Prism

Illustration of a hollow right heptagonal/septagonal prism with regular heptagons/septagons for bases…

### Heptagonal/Septagonal Prism

Illustration of a regular right heptagonal/septagonal prism with regular heptagons/septagons for bases…

### Heptagonal/Septagonal Prism

Illustration of a right heptagonal/septagonal prism with regular heptagons/septagons for bases and rectangular…

### Heptagonal/Septagonal Prism

Illustration of a right heptagonal/septagonal prism with regular heptagons/septagons for bases and rectangular…

### Similar Heptagonal/Septagonal Prisms

Illustration of 2 similar right heptagonal/septagonal prisms. Both have regular heptagons/septagons…

### Inverted Septagonal/Heptagonal Pyramid

Illustration of a hollow right heptagonal (septagonal) pyramid. The base is a heptagon and the faces…

### Inverted Septagonal/Heptagonal Pyramid

Illustration of a hollow right heptagonal (septagonal) pyramid. The base is a heptagon and the faces…

### Septagonal/Heptagonal Pyramid

Illustration of a right septagonal/heptagonal pyramid with hidden edges shown. The base is a heptagon…

### Septagonal/Heptagonal Pyramid Cut By Plane

Illustration of a right septagonal/heptagonal pyramid, with hidden edges shown, that has been cut by…

### Frustum Of A Septagonal/Heptagonal Pyramid

Illustration of a septagonal/heptagonal pyramid that has been cut by a plane parallel to the base. The…

### 2 Concentric Septagons/Heptagons

Illustration of 2 regular concentric heptagons/septagons.

### 2 Concentric Septagons/Heptagons

Illustration of 2 regular concentric heptagons/septagons.

### 3 Concentric Septagons/Heptagons

Illustration of 3 regular concentric heptagons/septagons that are equally spaced.

### 4 Concentric Septagons/Heptagons

Illustration of 4 regular concentric heptagons/septagons that are equally spaced.