回复：The maximum is n-3 reflex angles

来源: 好吃客 于 2010-07-21 06:20:14 [] [旧帖] [给我悄悄话] 阅读数 : (246 bytes)

Thanks a lot! I thought along the same line too, but has great difficulty to visualize such a polygon. For example, for a 8-sided polygon, it's easy to draw it as 1 concave angle, 1 convex angle subsequently. Where can the 5th concave angle be?

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• 回复：回复：The maximum is n-3 reflex angles -guest007- ♀ 给 guest007 发送悄悄话 (12 bytes) () 07/21/2010 postreply 06:38:26

• A key corollary to (2) is that -外-国人- ♂ 给 外-国人 发送悄悄话 (149 bytes) () 07/21/2010 postreply 11:28:30

• Here's an easy way to visualize it -ElizabethTaylor- ♂ 给 ElizabethTaylor 发送悄悄话 ElizabethTaylor 的博客首页 (428 bytes) () 07/21/2010 postreply 15:09:34

• Sorry maybe this is a mental block, but... -好吃客- ♀ 给 好吃客 发送悄悄话 (188 bytes) () 07/21/2010 postreply 19:31:38

• No, that's not necessarily the case -ElizabethTaylor- ♂ 给 ElizabethTaylor 发送悄悄话 ElizabethTaylor 的博客首页 (336 bytes) () 07/22/2010 postreply 05:16:37

• Got it ! hanks a bunch! -好吃客- ♀ 给 好吃客 发送悄悄话 (0 bytes) () 07/22/2010 postreply 07:10:41

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