What Do You Call A Shape With 12 Sides?

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Shapes are one of the fundamental elements of geometry. They come in different sizes, shapes, and even the number of sides. Have you ever wondered what a shape with 12 sides is called? In this article, we will explore this shape and learn more about it.

What is a Shape with 12 Sides?

A shape with 12 sides is called a dodecagon. It is a polygon with 12 straight sides and 12 angles. The word "dodecagon" comes from the Greek words "dodeka," which means twelve, and "gonia," which means angle. Therefore, a dodecagon is a shape with 12 angles.

Properties of a Dodecagon

A dodecagon has several unique properties that make it an interesting shape. Some of these properties include:

• A dodecagon has 12 equal sides and 12 equal angles.
• The sum of the internal angles of a dodecagon is 1800 degrees.
• A dodecagon can be divided into 54 triangles.
• The perimeter of a dodecagon is 12 times the length of its side.
• The area of a dodecagon can be calculated by dividing it into triangles and adding up their areas.

Examples of Dodecagons

Dodecagons can be found in different forms in our daily lives. Some of the examples include:

• The stop sign on the road is a dodecagon.
• The shape of a soccer ball is made up of 12 pentagons and 20 hexagons, which can be divided into 12 dodecagons.
• The twelvetone music system is based on the dodecagon.

How to Construct a Dodecagon

Constructing a dodecagon can be a fun activity. Here are the steps to follow:

1. Draw a straight line and mark its midpoint.
2. Using a compass, draw a circle with its center at the midpoint of the line.
3. Draw a perpendicular line to the first line, passing through the center of the circle.
4. Place the compass on the intersection of the two lines and draw a circle that intersects the first circle at two points.
5. Repeat step 4 until you get 12 points on the circumference of the circle.
6. Join the points to form a dodecagon.

Applications of Dodecagons

Dodecagons have several practical applications in our daily lives. Some of these applications include:

• In architecture, dodecagons are used to construct domes and cupolas.
• In art, dodecagons are used to create patterns and designs.
• In science, dodecagons are used to study crystal structures.

Conclusion

In conclusion, a shape with 12 sides is called a dodecagon. It is a polygon with 12 straight sides and 12 angles. A dodecagon has several unique properties that make it an interesting shape. It can be found in different forms in our daily lives and has practical applications in various fields. Constructing a dodecagon can be a fun activity that can help us learn more about this shape.

So, the next time you see a stop sign, a soccer ball or a cupola, you will know that they are all dodecagons!

Source: etc.usf.edu

Source: etc.usf.edu

Source: www.pinterest.ph