What is a Pyramid?

The pyramid on the left is made up of a bunch of triangles and a six-sided polygon
The pyramid on the right is made up of a bunch of triangles and a five-sided polygon
The six-sided polygon is the base of the pyramid on the left
The five-sided polygon is the base of the pyramid on the right
The triangles that make up the sides are called faces
The point where the triangular faces come together is called the vertex
A six-sided polygon is called a hexagon
A five-sided polygon is called a pentagon

1. A face is a side of a solid figure that is not a base
1. The shape on the bottom that is not a triangle is the base
2. The base COULD be a triangle also, but in our case it is not
1. Since the base of the first pyramid has 6 sides, that means it has 6 faces
2. The second pyramid has 5 sides, so it has 5 faces
3. The base of the first pyramid is a hexagon, so it is called a hexagonal pyramid
4. The base of the second pyramid is a pentagon, so it is called a pentagonal pyramid
1. A regular polygon is a polygon whose sides and angles are all equal
1. Since triangles have 3 sides, triangular pyramids have 3 faces
1. Since rectangles have 4 sides, rectangular pyramids have 4 faces

What is a pyramid?