A 3 by 3 cube is constructed of 27 blocks. How many blocks are needed to construct a cube with twice the dimensions of the original cube?

Question

AL2006 · Answer

"Twice the dimensions" means the length, width, and height of the new cube are all 6. 
 To build that cube, you need (6 x 6 x 6) = 216 blocks.

AL2006 · Answer

Doubling the dimensions of a 3 by 3 cube results in a new cube with dimensions of 6 units each side. This new cube has a volume of 216 cubic units. Therefore, 216 blocks are needed to construct this larger cube. 
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A 3 by 3 cube is constructed of 27 blocks. How many blocks are needed to construct a cube with twice the dimensions of the original cube?

Answer (2)

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