How many angles are in a dodecagon?
There are six angles in a dodecagon. The angles are the angles between the ten points of the dodecagon. What is dodecahedron made up of? A dodecahedron is made up of twelve pyramids. Who invented the dodecahedron? The dodecahedron is the most famous of all the icosahedrons. It was first discovered in 1748 by Blaise ... Read more...