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You mean a rectangular prism? Like a block of LEGO?

Then you just need to work out the surface area of the four sides, which will be two pairs of identical rectangles.

So;

((L*W)+(W*D))*2

L

______|______

/ /|

/____________/ |-D

| | |

| | /

|____________|/ \

W

Q: What is the surface area formula for a rectangular solid?

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The formula for the surface area of a rectangular solid is = 2lw + 2lh + 2wh 2(length x width)+2(length x height)+2(width x height)

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?

The formula for finding the surface area of a rectangular prism is 2(wh + lw + lh), where w is width, h is height, and l is length. 3.14 is the value for pi, which is only used for circular objects, like circles, cylinders, and spheres. It has nothing to do with rectangular prisms. Click on the related link below for an illustration of the formula for the surface area of a rectangular prism.

surface area=(perimeter of base)x(height of the shape)+(area of the base)x(2)

Related questions

The formula for the surface area of a rectangular solid is = 2lw + 2lh + 2wh 2(length x width)+2(length x height)+2(width x height)

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

Suppose that the area of the rectangular base is: lw then if the height is: h the surface area is: lw + lh + wh I believe that formula is for the surface area of a rectangular prism...

LxWx2

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

2lw + 2lh + 2wh

its not i dont no why

A= 2(wh+lw+lh) where w = width h = height and l = length When trying to find the surface area of something, it is important to try to remember the specific formula. The formula for the surface area of a rectangular prism is A=2(wl+hl+hw).

Formula: S = 2B + L

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

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

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?