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April 21, 2015

Homework Help: math

Posted by kapil on Monday, March 18, 2013 at 4:08am.

A cube has 8 vertices. For each pair of distinct vertices, we connect them up with a line segment. There are (8 2 )=28 such line segments. For each of these 28 line segments, we mark the midpoint. How many distinct points have been marked as the midpoints?

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