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A prism is a polyhedron with two parallel bases bounded by congruent polygons and with lateral faces bounded by parallelograms that connect the corresponding sides of the bases. The height of a prism is any perpendicular line drawn from a point on one base to the other base.

If the the bases' shape of a prism is a triangle, we call it a triangular prism (it has 3 faces).

The surface area is the sum of the bases' area and the faces' area (lateral area).

Q: When was the surface area formula developed for the triagular prism?

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4

A triagular prism has 5 faces, 9 edges and 6 vertices

It is a triagular prism

imagine a bunch of triangles stacked

all of its edges are straight

Related questions

Yes

8

4

A triagular prism has 5 faces, 9 edges and 6 vertices

imagine a bunch of triangles stacked

all of its edges are straight

It is a triagular prism

LxWx2

There must be a typo in this question, "Why does the formula for finding the surface area of arectangular prism is helpful?" What does that even mean?

perpendicular height

S=2B+Ph

surface area of a rectangular prism is the formula: 2lw+2wh+2lh