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OpenStudy (anonymous):
What is the surface area of a cube with side length 9 km?
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OpenStudy (anonymous):
49 km
OpenStudy (anonymous):
The Only Answer Choices Are (A) 216km2 (B) 324km2 (C) 486km2 (D) 729km2
OpenStudy (anonymous):
486 km^2
OpenStudy (mathmale):
@PITBULLTERRIER13: It's important that you know how to obtain the correct answer yourself. What is the formula for the surface area of a cube, and why?
OpenStudy (anonymous):
Thanks @thatman
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