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?

Question

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?

Himadri Mukherjee · Answer

19

aaron · Answer

which of the numbers below is the sum of four consecutive whole numbers