Don't know how to do
please tell me the method to solve thanks
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F.4 maths 1 Q
2011-03-09 2:10 am
回答 (1)
2011-03-10 2:17 am
✔ 最佳答案
Let S be a point on the arc AB of the circle ABQ.Since two circle are equal ,
ㄥASB = ㄥAPB (equal chord AB , equal ㄥS) = 180° - ㄥBPQ ....(1)
On the other hand ,
ㄥASB + ㄥPQB = 180°
ㄥASB = 180° - ㄥPQB .......(2)
(1) & (2) :
180° - ㄥBPQ = 180° - ㄥPQB
ㄥBPQ = ㄥPQB
So BP = BQ
收錄日期: 2021-04-21 22:20:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110308000051KK00957