A 12sided shape or polygon is called a dodecagon. An interior angle of a dodecagon is equal to 150 degrees and the sum of all the interior angles is equal to 1800 degrees. You can
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dodecagon.
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Dodecagon is a twelve sided shape. Thank you!
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A tetrahedron is one of the five Platonic solids, since it is a pyramid made up of four equal triangles. But a squarebottomed pyramid is not a tetrahedron, since it also includes
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