圆心角
定理
圆周角为圆心角的½.
延伸阅读
参考资料
外部連結
- . Math Open Reference. 2009 [2013-12-30]. (原始内容存档于2018-06-12) (英语). 於網際網路資料庫
- . Math Open Reference. 2009 [2013-12-30]. (原始内容存档于2014-01-10) (英语). 於網際網路資料庫
- Inscribed and Central Angles in a Circle页面存档备份,存于 (英文)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.