## Heptagon

### A heptagon is a polygon with seven sides and seven angles

A heptagon is a polygon with seven sides and seven angles. The term “heptagon” is derived from the Greek words “hepta,” meaning seven, and “gonia,” meaning angle. Each angle in a regular heptagon measures 128.57 degrees, and the sum of all the interior angles is always 900 degrees.

Properties of a heptagon:

1. Sides: A heptagon has 7 sides, which means it is a seven-gon.

2. Angles: A regular heptagon has 7 equal angles, each measuring approximately 128.57 degrees. In an irregular heptagon, the angles can be of different sizes.

3. Diagonals: A heptagon has a total of 14 diagonals, which are straight line segments connecting non-adjacent vertices.

4. Symmetry: Regular heptagons have rotational symmetry of order 7, meaning that they can be rotated 360/7 degrees and still appear the same.

To calculate properties of a regular heptagon, you can use the following formulas:

– Interior angle: The measure of each interior angle in a regular heptagon can be calculated using the formula: (7-2) * 180 / 7 = 128.57 degrees.

– Exterior angle: The measure of each exterior angle in a regular heptagon can be calculated as: 360 / 7 = 51.43 degrees.

– Sum of interior angles: The sum of all interior angles in a heptagon can be calculated using the formula: (7-2) * 180 = 900 degrees.

– Sum of exterior angles: The sum of all exterior angles in any polygon, including a heptagon, is always 360 degrees.

In real-life applications, heptagons can appear in various architectural designs, such as the layout of buildings, as well as in nature, such as the shape of some flowers. Understanding the properties of heptagons is useful when studying geometry, trigonometry, and other branches of mathematics.

##### More Answers:

Exploring Triangles | Types, Properties, and Classifications in GeometryMastering Octagons | Properties, Perimeter, and Area of this Eight-Sided Marvel

Understanding Hexagons | Properties, Formulas, and Calculations for Regular and Irregular Hexagons