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A twelve sided polygon is called a dodecagon. Each interior angle of a regular dodecagon is 150 degrees. In Australia, they use a coin that is a dodecagon.
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A polygon that contains 12 sides is called a dodecagon. If you have an Australian coin that is worth 50 cents, you will see the dodecagon shape. For more information look here: http
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My best friend needed to know what a 12 sided polygon is called for her exam last week. So when I looked, I found out that is called a dodecahedron. Look here for more information
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1. Divide the math constant pi, which is approximately 3.142, by 12, the number of sides. Pi divided by 12 equals approximately 0.2618. 2. Calculate the tangent measured in radians
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