CrisRod CrisRod

14-03-2016
Mathematics

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what is the surface area of a cube with 3 on each side in square millimeters?

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14-03-2016

ok so surface area
cube has 6 faces
each face is a square
so
surfac area=6 times (area of a square)
area of a square=side times side=side^2
side=3
therefore we have
SA=6(3^2)
SA=6(9)
SA=54

assuming that the side is 3mm
54mm^2 is surface area

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