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Posted by on Friday, April 22, 2011 at 12:26pm.

The surface area of a cube is 384 square inches. What is the volume of the cube????

A. 8 cubic inces
B. 16 cubic inches
C. 256 cubic inches
D. 512 cubic inches

  • Math - , Friday, April 22, 2011 at 12:54pm

    Let the side length be a.

    The area is 6 a^2 = 384, so
    a^2 = 64

    That should tell you what the value of a is.

    The volume of the cube is a^3. It is one of your choices. Do the numbers.

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