The Difference between Prism and Pyramid is given here. In geometric terms, a prism and a pyramid are different structures. Prism has two congruent bases, while a pyramid has one base.
Using the terms synonymously is rare, but it is important to know the prism and pyramid definitions.
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What is Prism?
A prism is a polyhedron with a polygonal base with n quantities of sides, a translation copy (it is not in the same plane as the first one) and other n parallelogram faces that join both sides of the corresponding ones of both bases. The parallel cross-sections of a prism can be split into two forming a triangle and a square on the faces of the base. A prism is a subclass of prismatoids.
A prism gets its name from the shape of its base, for example, a prism with a pentagonal base is called a pentagonal prime. A prism with edges and junctions parallel to each other and faces perpendicular to the face of the base is called a right prism. An oblique prism is one where the faces are not perpendicular to the face of the base. As a prism increases its number of faces n and this number approaches infinity, then the prism becomes a cylinder.
Prism Shapes
What is Pyramid?
Pyramids are polyhedra, they are made up of a polygon or base and a number of triangles on each side of the polygonal base. All the triangles converge at a point called the vertex of the pyramid. The triangles of a pyramid are called lateral faces and the common side between them is called the edge. A pyramid is made up of a base, vertex, edge, and height. There are several types of pyramids such as the oblique pyramid and the square pyramid.
Main differences between Prism and Pyramid
Prism | Pyramid |
A prism is a 3-D polyhedron shape having 2 bases. | A pyramid is a 3-D polyhedron shape having a single base. |
Its sides are rectangular in shape. | Its sides are triangular in shape. |
It does not have an apex. | It has an apex. |
The sides of the prism are perpendicular to the base. | The sides of the pyramid are inclined at an angle to the base. |
Its sides are not always joined at a point. | Its sides are joined together at a point. |
It has 2 bases. | It has 1 base only. |
It deals with optical and Geometrical fields. | It deals with Geometrical fields only. |
Similarities between Prism and pyramid
- Both prism and pyramid have 3-dimensional shapes.
- All the sides of the prism and pyramid meet at the bases.
- Both pyramids and prisms do have not round sides.
- Both are solid Geometrical shapes.
- Both have flat bases.