👉 A protopyramid is a type of pyramid that has two parallel triangular faces. It's named after the protopyr, which is a hypothetical planet in science fiction. In this case, it refers to a prototype model or design for a pyramid.
👉 A protopyramid is a type of pyramid that has two parallel triangular faces. It's named after the protopyr, which is a hypothetical planet in science fiction. In this case, it refers to a prototype model or design for a pyramid.
