veiledcape veiledcape

21-01-2015
Mathematics

Answered

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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pvearrier16 pvearrier16

21-01-2015

Multiply like this. And it gives you your answer.

7.8•7.8•7.8

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familiarblonde familiarblonde

21-01-2015

estimating would involve just rounding up to 8 for the length.
then V=blh, 8×8×8= 512

(But if you work the problem as originally stated though, 7.8×7.8×7.8= 474.552, and that rounded up is 475).

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