surface area of a cube length 7 with 8 hite11  hellp 

Guest Apr 20, 2017

a is length

b is height

11 is width

Surface Area of a Rectangular Prism = 2ab + 2bc + 2ac


SA = 2(7)(8) + 2(8)(11) + 2(7)(11)

SA = 442


Just a clarification, the dimensions of the shape are not that of a cube but that of a rectangular prism. The formula to find the surface area of a cube is 6a2 where a is the side length. 


Hope this helped :)

Guest Apr 20, 2017

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