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Q: What is the formula for calculating the surface area of a rectangular prism?

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Surface area = 2LW + 2(L+W)H

It depends how tall it is =)

There is no rectangular prism below 8 8 19.

Squared. When you find surface area, you are only finding the area of the shapes that make up the three-denominational shape.

It is an extension of Pythagoras's theorem to 3-dimensions. Diagonal2 = Length2 + Width2 + Height2

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It depends on how many sides are part of the "opening".

LxWx2

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

W = Volume x weight density

I am not sure that a rectangular prism is in any position to care!

its not i dont no why

Depends whether you want the formula for surface area, volume, perimeter, size of sphere it would fit into etc... Please clarify next time.

Formula: S = 2B + L

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?

Surface area = 2LW + 2(L+W)H

The formula will depend on what it is that you are trying to find: the volume or the surface area.

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