What is a pyramid?
A pyramid is 3D shape which is formed when you connect a base to an apex. There are many different types of pyramids.
Naming pyramids:
If the pyramid as a square on the base that means it is a SQUARE BASED PYRAMID and if it as a hexagon on the base then it is called a HEXAGONAL BASED PYRAMID. There examples of regular pyramids When there is irregular pyramids as well:
This shape is a hexagonal based pyramid, I know that since it as a hexagon shaped base. This shape is a regular pyramid.
This shape is a Irregular hexagonal pyramid, I know this since the base is hexagon, but it is on a angle so that's why its named irregular.
What is a Prism?
A Prism is a 3d shape that both ends are the same and have equal edges and vertices. All prisms can stretch far and will still be a prism.
This Shape here is Pentagon Prism, I know this because there are pentagons on either sides.
This shape here is a triangle prism I known this because there are triangle on either sides.
What is a cuboid?
A cuboid is the same as a rectangular prism but we call it a "CUBOID"