Number of Edges on a Cube

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How many edges does a cube have?

12.

A cube has 12 edges. In planar geometry an edge is defined to be ‘Ëœa boundary of a plane geometric figure’â„¢. Since a cube consists of 6 faces, or planes, each plane intersects another 4 times, but to account for redundant edges we divide this by 2, so we get 12 edges.

 

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