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).
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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...
Formula: S = 2B + L
The surface area of a cylinder prism has round shape and the surface of a rectangular prism has a square shape.
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It depends on the prism. There will be different formulae for the bases depending on type of polygon and that will also determine the number of rectangular faces.