Dear Geometers,

Today we’ll begin discussing geometric solids. We’ll classify these solids based on their attributes, and we’ll think about how these solids are similiar and different. It’s important to keep in mind the vital differences between two-dimensional and three-dimensional figures. They really do live on different worlds, although they like to visit each other.

Luckily, our friend Euler found out some secrets about polyhedrons (a specific type of solid). I think you’ll be amazed by the rules these polyhedrons follow.

Sincerely,

Mr. H