What Is A Figure With 9 Sides Called?
Welcome to our blog post where we will be discussing one of the most interesting geometric shapes that exist - a figure with 9 sides. This shape is also known as a nonagon, enneagon or a nine-sided polygon. We will take a closer look at its properties, characteristics and various examples where it can be found in the real world.
Properties of a Nonagon
A nonagon is a polygon with 9 sides, 9 angles and 9 vertices. It is also a regular polygon, meaning that all its sides and angles are equal. The sum of all interior angles in a nonagon is 1260 degrees and the measure of each interior angle is 140 degrees. The formula to calculate the sum of all interior angles in a polygon is (n-2) x 180 where n is the number of sides. Therefore, for a nonagon, the formula would be (9-2) x 180 = 1260 degrees.
Examples of a Nonagon
Nonagons can be found in various places in the real world. One of the most famous examples is the United States one-cent coin, also known as a penny. The backside of the penny has a nonagon in the center, which is surrounded by the familiar wreath of olive branches. Another example of a nonagon can be seen in the design of the Enneagram, a system of personality types that is based on a nine-pointed geometric figure.
Nonagons can also be found in nature. For example, the fruits of the Sweet Gum tree have a nonagon shape, with each of the nine sections containing a single seed. Additionally, the famous crop circles that appear in fields around the world are often created using nonagon geometry.
Nonagon Construction
The construction of a nonagon requires a compass and a straight edge. Here are the steps to construct a nonagon:
- 1. Draw a circle of any size using a compass
- 2. Draw a horizontal line through the center of the circle
- 3. Divide the circle into 9 equal parts using the compass
- 4. Connect the points where the circle intersects with the horizontal line
- 5. Connect the points on either side of each intersection point to form the nonagon
Conclusion
A nonagon is a fascinating geometric shape that has many interesting properties and applications. It can be found in various places in the world around us, from the design of the Enneagram personality system to the fruits of the Sweet Gum tree. With its unique shape and regularity, the nonagon is a great example of the beauty and complexity of mathematics and geometry.
So, this concludes our article on what a figure with 9 sides is called. We hope you found it informative and interesting!
Posting Komentar untuk "What Is A Figure With 9 Sides Called?"