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Mathematics 7 Online
OpenStudy (gabbyalicorn):

What is the surface area of the cube?

OpenStudy (gabbyalicorn):

so 4 x 4 x 4 ? -3-

OpenStudy (michele_laino):

that is the volume

OpenStudy (gabbyalicorn):

64

OpenStudy (gabbyalicorn):

64 x 2?

OpenStudy (michele_laino):

the area of surface is: 6*(4*4)=... since we have six sides

OpenStudy (gabbyalicorn):

96

OpenStudy (michele_laino):

and each of those sides is a square

OpenStudy (michele_laino):

that's right!

OpenStudy (gabbyalicorn):

:D so 96 x 4 ?

OpenStudy (michele_laino):

no, it is A=64 mm^2 only

OpenStudy (michele_laino):

sorry it is:A=96 mm^2 only

OpenStudy (gabbyalicorn):

128

OpenStudy (michele_laino):

no, please, your answer is: area = 6*16=96 mm^2

OpenStudy (gabbyalicorn):

ooooh, i get it. sorry

OpenStudy (michele_laino):

no worries! :)

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