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Prism is a 3D (3-dimensional) solid object with identical faces at both ends. It is thus, a combination of identical bases, flat faces along with equal cross-sections. A prism can be of various kinds which are defined based upon the shape of its base which could be a square, rectangle, triangle, or n-sided polygon.
A prism is an important member of the polyhedron family having congruent polygons at the base and top and the others as lateral faces.
Examples of prism
We find examples of Prism in everyday lives such as a fish aquarium, metallic nuts, Camping tents, boxes, tanks etc and many such real life examples in our surroundings.
The prisms can be classified based on the type of polygon base or the type of cross-section of the prism or the alignment of identical bases. A prism cannot have a curve. Therefore, a prism can have a defined base only such as a base of triangle, square, rectangle, pentagon and other polygon shapes except for circle or any other circular shape.
Now, what is a difference between a Prism and a Pyramid?
We know that both prism and pyramid are 3-D solids having flat faces and bases. The difference is that a pyramid has only one base while a prism has two identical bases.
Based on the type of polygon base, prisms can be classified into the following:
Based on the cross-section of the base, Prisms can be classified into regular and irregular prisms.
Based on the alignment of identical bases, Prisms can be classified into Right & Oblique Prisms.
Lateral Surface Area:
LSA = Base perimeter × height
Total Surface Area:
TSA = Lateral surface area of prism + area of the two bases
= (Base Area x 2) + LSA
Volume = Area of Base x height
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