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OpenStudy (anonymous):
HI THE FIRST ONE TO FINISH GETS MEDAL OR FAN YOU CHOOSE GL!! What is the surface area of a cube with side length 9 kilometers? two hundred sixteen square kilometers three hundred twenty-four square kilometers four hundred eighty-six square kilometers seven hundred twenty-nine square kilometers
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OpenStudy (anonymous):
486 square kilometers
OpenStudy (anonymous):
9*9=81. (One Side) Cube has 6 sides, 81*6=486.
OpenStudy (anonymous):
congrats @andypie1010
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