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Suppose each edge of a cube is 7.8 cm long. Which is the BEST estimate for the volume of the cube?

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2 Answers

Suppose each edge of a cube is 7.8 cm long. Which is the BEST estimate for the volume of the cube?
 
They must have given you a list of choices.
 
One estimate could be 8*8*8 = 64*8 = 480+32 = 512
 
 
Refer to your reference sheet, and you should see that volume of a cube (also known as a square prism) V=bwh. In the case of a cube, all side are the same. Thus, b=7.8, w=7.8, h=7.8. 
 
V=7.8 x 7.8 x 7.8 = 474.552 cm3