珍珠湾ART

标题: One simple geometry problem--for yma16's problem [打印本页]

作者: 乱弹 时间: 2005-9-13 01:03
标题: One simple geometry problem--for yma16's problem

Given n+2 points on the plane such that 2 of them are in the interior of the convex hull of the other n points, where n>2. Prove that these n+2 points can form a concave polygon with exactly one inner angle> 180 degree.

Please generalize it. I have never tried but will.

http://www.topchinesenews.com/listo.aspx?topic_id=9&msg_id=3756&level_string=0&page=1

欢迎光临珍珠湾ART (http://zzwav.com/)