ICSE Class 9 Answered
Consider a 20-sided convex polygon K, with vertices A1,A2,A3......A20 in that order . Find the number of ways in which three sides of K can be chosen so that every pair among them has at least two sides pf K between them .
Asked by Abinash Tarai | 05 Dec, 2011, 10:27: PM
Expert Answer
Answered by | 07 Dec, 2011, 02:32: PM
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