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Find the surface area of this solid.  I really don't get how to do this.

 

 Aug 3, 2020
 #1
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Just add up all of the areas of all of the sides:

tops             5x8    in2

bottom     5x8

back   5x8

front    5x8

sides (two)     2  *  (8x8 - 4x4)    in2                    Total 'em up !

 Aug 3, 2020

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