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OpenStudy (anonymous):
Four points are placed on a circle. How many segments will it take to connect each point to every other point?
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OpenStudy (anonymous):
the first one needs 3 segments to connect with the others the seconds one needs 2 segments to connect with the other, expect the first one. You would need: 3 + 2 +1 + 0 = 6 For n points: n(n-1)/2
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