Violympic toán 6

H24

Given 100 points with any 3 points non-aligned. Draw all the line passing through any 2 of these points. How many lines are there?

H24
19 tháng 1 2018 lúc 9:45

Given 100 points with any 3 points non-aligned. Draw all the line passing through any 2 of these points. How many lines are there?

With 100 points, then we draw are:

100 x 99 : 2 = 4950 ( lines )

Answer: 4950 lines

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