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Mathematics 8 Online
OpenStudy (anonymous):

Help

OpenStudy (anonymous):

OpenStudy (anonymous):

A i think. :)

OpenStudy (anonymous):

Okay thanks.

OpenStudy (anonymous):

@study100 what do you think?

OpenStudy (anonymous):

He is right. Surface area= 2LW + 2WH + 2LH New surface area = 2(13.5)(7.5) + 2(13.5)(18) + 2(7.5)(18) = 958.5

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