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You have to visualize the 3-D object. Think in your mind that this object has six sides. To find the surface area you need to add all of the areas of these sides together. In order to do that you need this formula...
S.A. = 2(L*H) + 2(L*W) + 2(H*W)
L=length
H=height
W=width
Go to the related link below for a good representation
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Total surface area of rectangular solid?
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)
What is the formula for surface area in a rectangular prism?
LxWx2
What is the surface area formula for a rectangular solid?
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
Why does the formula for finding the surface area of a rectangular prism is helpful?
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?
What is the formula for finding the surface area using 3.14 for rectangular prism?
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.
