What Is A Shape Called With 7 Sides?
Welcome to our article discussing the shape that has 7 sides. In geometry, shapes play a vital role, and they have unique characteristics that make them distinct from each other. In this article, we will explore the shape that has 7 sides and discuss its properties, history, and examples. So, let's dive in and explore the fascinating world of geometry!
What Is the Name of the Shape with 7 Sides?
The shape that has 7 sides is called a heptagon. The term "heptagon" comes from the Greek words "hepta," meaning seven, and "gonia," meaning angle. Therefore, a heptagon is a polygon with seven angles and seven sides.
Properties of a Heptagon
A heptagon is a regular polygon, meaning that all its sides and angles are equal. The interior angles of a heptagon sum up to 900 degrees, and each interior angle measures around 128.57 degrees. The exterior angles of a heptagon measure around 51.43 degrees each.
A heptagon has seven vertices, which are the points where two sides of the polygon meet. There are 21 diagonals in a heptagon, which are the line segments that join two non-adjacent vertices.
Real-Life Examples of Heptagons
Heptagons are not commonly found in real-life objects. However, they can be observed in some geometric shapes and structures. For example, the seven-segment display used in electronic devices such as digital watches, calculators, and alarm clocks, are heptagonal in shape.
Another example is the British fifty pence coin, which has a heptagonal shape. The coin's design features several heptagons arranged in a pattern, making it unique and easily recognizable.
History of Heptagons
Heptagons have been known to mathematicians since ancient times. In Greek geometry, heptagons were used to construct regular polygons with more sides.
The ancient Greeks also believed that the number 7 was mystical, and heptagons were considered sacred shapes. It was believed that heptagons had magical powers and could bring good luck to those who possessed them.
Interesting Facts About Heptagons
Here are some interesting facts about heptagons:
- Heptagons are the smallest regular polygon that cannot be constructed using only a ruler and compass
- The heptagon has a unique property that allows it to be tiled to cover a flat surface without gaps or overlaps
- A heptagon can be divided into five triangles and two quadrilaterals
- The heptagon is the only regular polygon with a prime number of sides
Conclusion
Heptagons are fascinating shapes that have unique properties and a rich history. They are not commonly found in real-life objects, but their presence in electronic devices and coins makes them easily recognizable. We hope that this article has provided you with a better understanding of heptagons and their significance in geometry.
Remember, shapes play a vital role in our daily lives, and studying them can help us understand the world around us better. So, keep exploring and learning new things about geometry and its fascinating shapes!
References:- https://mathworld.wolfram.com/Heptagon.html
- https://www.britannica.com/science/heptagon
- https://www.mathsisfun.com/geometry/heptagon.html
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