Heptagon - Wikipedia
In geometry, a heptagon is a seven-sided polygon or 7-gon. The heptagon is sometimes referred to as the septagon, using septa- (an elision of septua-), a Latin -derived numerical prefix, rather than hepta-, a Greek -derived numerical prefix (both are cognate), together with the suffix -gon for Greek: γωνἰα, romanized: gonía, meaning angle.

Heptagon – Definition, Shape, Properties, Formulas
Heptagon Definition A heptagon is a polygon with seven sides and seven angles. The term ‘heptagon’ is derived from the Greek words ‘hepta’ meaning seven and ‘gon’ meaning sides. A heptagon is also known as 7-gon or septagon (‘septa’ means seven in Latin).

Heptagon - Math.net
Heptagons are present in real life. Two real-life heptagon examples include the fifty pence and twenty pence coins in the UK. The figure below shows a few examples of the shapes that a heptagon can take on. Heptagons are classified as regular or irregular and concave or convex.

Heptagon - Definition, Types, Properties, Formula, Examples
Heptagon is a two-dimensional shape with seven angles, seven vertices, and seven edges. This seven-sided polygon “heptagon” is made up of two words ‘Hepta’ and ‘Gonia’, which means seven angles. Another name given to it is septagon or 7-gon. A heptagon has fourteen diagonals.

Heptagon: 7-Sided Polygon, Angles, and Examples
A heptagon is a 7-sided polygon with interior angles summing to 900°. Learn its sides, angles, regular vs irregular types, worked examples, and clear diagrams.

Septagon vs. Heptagon: What's the Difference?
A regular septagon or heptagon has all its sides and angles equal, whereas an irregular one does not have equal sides and angles. Regardless of the nomenclature, the geometric principles applicable to a septagon are equally applicable to a heptagon.

Mastering Heptagons – A Beginner’s Guide
There are two main types of heptagons: regular and irregular. A regular heptagon has all sides and angles equal. It is both cyclic (all corners lie on a single circle, known as the circumcircle) and equilateral (all sides have the same length).

Heptagon Definition, Properties, Types, Formula, Example
Learn about the two-dimensional shape heptagon and its properties. Learn about types of heptagons and how to find the perimeter of a heptagon.

Heptagons: A Complete Guide to the 7-Sided Polygon
What Exactly Is a Heptagon? A heptagon is a two-dimensional polygon with seven straight sides and seven angles. The name originates from the Greek words "hepta," meaning seven, and "gonia," meaning angle. Every heptagon also has seven vertices, which are the corner points where the sides meet.

List of polygons - Wikipedia
In geometry, a polygon is traditionally a plane figure that is bounded by a finite chain of straight line segments closing in a loop to form a closed chain. These segments are called its edges or sides, and the points where two of the edges meet are the polygon's vertices (singular: vertex) or corners.