In the figure, the centre O of circle APC lies on circle ABC. BPC is a straight line.
Show that OB bisects angle ABC.
圖片參考：http://imgcld.yimg.com/8/n/HA06575449/o/701104190121513873428830.jpg
Angles in circle
2011-04-20 5:26 am
回答 (1)
2011-04-20 5:31 am
✔ 最佳答案
OA = OC (The radius of circle APC)ㄥABO = ㄥCBO (ㄥS in the equal segment OA , OC)
Hence OB bisects angle ABC.
收錄日期: 2021-04-21 22:21:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110419000051KK01215