What Is A 10 Sided Polygon Called?
Have you ever heard of a 10 sided polygon? If you're not familiar with geometry, you might not know what this shape is or what it's called. In this article, we'll explore the world of polygons and reveal the name of a 10 sided polygon. So, let's dive in!
What is a Polygon?
Before we can talk about a 10 sided polygon, we need to understand what a polygon is. A polygon is a closed shape that has three or more straight sides. The sides of a polygon are called edges, and the points where the edges meet are called vertices. Examples of polygons include triangles, rectangles, and pentagons.
Introducing the Decagon
Now that we know what a polygon is, it's time to reveal the name of a 10 sided polygon. Drumroll please...the name of a 10 sided polygon is a decagon. The word "decagon" comes from the Greek words "deka," which means ten, and "gonia," which means angle.
Properties of a Decagon
So, what are the properties of a decagon? A decagon has 10 sides, 10 vertices, and 10 interior angles. The sum of the interior angles of a decagon is 1440 degrees. Each interior angle of a regular decagon measures 144 degrees.
A regular decagon is a decagon in which all the sides and angles are the same. An irregular decagon is a decagon in which the sides and angles are not the same. Regular decagons are often used in architecture and design, as their symmetrical shape is aesthetically pleasing.
Real Life Examples of Decagons
Decagons may seem like a purely theoretical concept, but they actually show up in real life more often than you might think. For example, some soccer balls are designed to have the shape of a truncated icosahedron, which is made up of 12 regular decagons and 20 regular hexagons. The United States Department of Defense also uses a decagon-shaped medal called the Defense Superior Service Medal to recognize superior meritorious service.
Other Names for Polygons
Now that we know what a decagon is, let's explore some other names for polygons. A 3 sided polygon is called a triangle, a 4 sided polygon is called a quadrilateral, a 5 sided polygon is called a pentagon, a 6 sided polygon is called a hexagon, a 7 sided polygon is called a heptagon, an 8 sided polygon is called an octagon, a 9 sided polygon is called a nonagon, and a 11 sided polygon is called a hendecagon.
Fun Facts About Polygons
Did you know that the sum of the interior angles of any polygon with n sides is (n-2) x 180 degrees? This means that a triangle has 180 degrees, a quadrilateral has 360 degrees, and so on. Also, the number of different diagonals in a polygon can be calculated using the formula n(n-3)/2, where n is the number of sides. For example, a decagon has 35 diagonals.
Conclusion
In conclusion, a 10 sided polygon is called a decagon. Decagons have 10 sides, 10 vertices, and 10 interior angles. They are used in various applications, from soccer balls to military medals. Now that you know the name of a decagon, you can impress your friends with your newfound knowledge of geometry!
Remember, learning about polygons may seem daunting, but it can be fun and rewarding. By understanding these shapes and their properties, you can gain a deeper appreciation for the world around us.
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