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Author Topic: 2002 Mathcounts School SPRINT ROUND PROBLEM 21  (Read 10838 times)

yongcheng3315

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2002 Mathcounts School SPRINT ROUND PROBLEM 21
« on: September 15, 2012, 03:51:31 PM »
Every two line segments meet at one point. We have a total of 7 points. So the red line p intersects 7 * 2 = 14 line segments. This problem is confusing. Students might think that every square has four line segments.

« Last Edit: December 22, 2012, 06:09:54 PM by yongcheng3315 »
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