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Mathematics 8 Online
OpenStudy (anonymous):

A cube has side length fifteen kilometers. What is its surface area?

OpenStudy (anonymous):

the suface area is ....... ummm i think it would be 30 cause u take the length x's 2 and it should give u the surface area ... i think correct me if iam wrong

OpenStudy (anonymous):

@wolf1728

OpenStudy (calculusxy):

you find the surface area of a cube by doing (6)a^2.

OpenStudy (anonymous):

Umm what does that mean im sorry

OpenStudy (calculusxy):

this means the area of a face of the cube times 6

OpenStudy (anonymous):

ao 15 x 6

OpenStudy (calculusxy):

15*15*6 225*6 1350

OpenStudy (anonymous):

it equals 90 and then multiply that by 2 right

OpenStudy (anonymous):

oh ok ok

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