What Is A 9-Sided Shape Called?
Geometry is an interesting subject that has fascinated many people for centuries. It is the study of shapes, sizes, and positions of objects in space. There are different types of shapes, such as circles, squares, triangles, and polygons. Polygons are shapes with straight sides and angles. One of the most interesting polygons is the 9-sided shape. In this article, we will explore what a 9-sided shape is called and its properties.
What is a 9-sided shape called?
A 9-sided shape is called a nonagon. The term "nonagon" comes from the Latin word "nonus," which means "nine." The nonagon is a polygon with nine sides and nine angles. It is a regular polygon, which means that all of its sides are equal in length, and all of its angles are equal in measure.
Properties of a nonagon
The nonagon has several properties that make it an interesting shape to study. Here are some of its properties:
- It has nine sides and nine angles.
- It is a regular polygon, which means that all of its sides are equal in length, and all of its angles are equal in measure.
- It has an interior angle sum of 1260 degrees. This means that if you add up all of the interior angles of a nonagon, the total will be 1260 degrees.
- It has nine diagonals. A diagonal is a line that connects two non-adjacent vertices. In a nonagon, there are nine diagonals.
- It has rotational symmetry of order 9. This means that if you rotate a nonagon by 40 degrees, it will look the same as it did before the rotation.
Examples of nonagons in real life
Nonagons are not just theoretical shapes studied in geometry. They can also be found in real life. Here are some examples:
- The Enneagram is a nine-pointed star that is used in spirituality and self-help. It is a nonagon with a regular pattern.
- The Aeronautical Systems Center logo of the United States Air Force is a nonagon with a regular pattern.
- The Nonagon Infinity album cover by the Australian psychedelic rock band King Gizzard & the Lizard Wizard features a nonagon.
Applications of nonagons
Nonagons have several applications in different fields. Here are some of them:
- In architecture, nonagons can be used to create unique and interesting shapes for buildings.
- In art, nonagons can be used as a design element to create patterns and textures.
- In mathematics, nonagons can be used to teach geometry and trigonometry.
Conclusion
In conclusion, a 9-sided shape is called a nonagon. It is a regular polygon with nine sides and nine angles. It has several interesting properties, such as an interior angle sum of 1260 degrees and rotational symmetry of order 9. Nonagons can be found in real life and have applications in different fields. Studying nonagons can help us appreciate the beauty and complexity of geometry.
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