我吾識做PARTB
所以淨係做PART B IS OK
http://yfrog.com/mu19258330p
MATHS 1題ONLY
2010-11-29 3:36 am
回答 (1)
2010-11-29 11:58 pm
✔ 最佳答案
圖片參考：http://imgcld.yimg.com/8/n/HA04628698/o/701011280137613873417830.jpg
b)
ㄥRSV = ㄥRWV (∠s in the same segment) ....... (1)
ㄥRWV = ㄥPQT (ext. ∠s, cyclic quad. RWTQ) ......(2)
(1) & (2) :
ㄥRSV = ㄥPQT
On the other hand ,
ㄥRSV = ㄥTUP (ext. ∠s, cyclic quad. PSVU)
Therefore ㄥPQT = ㄥTUP
Hence PQUT are also concyclic.(converse of ∠s in the same segment)
收錄日期: 2021-04-21 22:17:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101128000051KK01376