What Is The Shape With 9 Sides Called?
Shapes are an essential part of mathematics and geometry. They are the building blocks of various structures, designs, and patterns. There are numerous shapes, including squares, circles, rectangles, triangles, and more. However, have you ever wondered what the shape with 9 sides is called? In this article, we will explore the answer to this question and learn more about this unique shape.
What is a Shape with 9 Sides?
A shape with 9 sides is called a nonagon. It is a closed polygon that has nine straight sides and nine angles. The term nonagon comes from the Greek word "nona," which means nine, and "gonia," which means angle. Therefore, a nonagon is a polygon with nine angles.
Properties of a Nonagon
Angles
A nonagon has nine angles. The sum of the interior angles of a nonagon is equal to 1260 degrees. Each angle of a regular nonagon measures 140 degrees, while an irregular nonagon has angles of varying measures.
Sides
A nonagon has nine sides of equal length in a regular nonagon. In an irregular nonagon, the length of each side can vary. The perimeter of a regular nonagon can be calculated by multiplying the length of one side by nine.
Diagonals
A diagonal of a nonagon is a line segment that connects two non-adjacent vertices of the polygon. A regular nonagon has 27 diagonals, while an irregular nonagon can have a varying number of diagonals. The length of the diagonal can be calculated using the Pythagorean theorem.
Examples of Nonagons
Nonagons can be found in various structures and designs, including architecture, art, and nature. Some common examples of nonagons are:
- The United Nations headquarters building in New York City has a nonagon-shaped conference room with 28 sides.
- The flower of the soapwort plant has a nonagon shape.
- The Nonagon Pavilion in Slovenia is a multi-purpose cultural center with a unique nonagon shape.
Conclusion
In conclusion, a shape with 9 sides is called a nonagon. It is a closed polygon with nine straight sides and nine angles. Nonagons can be found in various structures, designs, and patterns, and they are an essential part of mathematics and geometry. Understanding the properties and characteristics of nonagons can help us appreciate the beauty and complexity of shapes and their applications in our daily lives.
So, the next time you come across a shape with nine sides, you will know that it is called a nonagon!
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