假设有此多边形存在,则所有边数之和为:
[(2a+1)+(2b+1)+(2c+1)...(2n+1)]/2 a,b,c,,,m为每个面之边数,因具有奇数个面,所以此和为 [2n+1]/2。非整数而不成立。
否
本帖于 2005-07-11 15:48:01 时间, 由普通用户 海姑娘 编辑
假设有此多边形存在,则所有边数之和为:
[(2a+1)+(2b+1)+(2c+1)...(2n+1)]/2 a,b,c,,,m为每个面之边数,因具有奇数个面,所以此和为 [2n+1]/2。非整数而不成立。
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy