http://img218.imageshack.us/img218/8853/ocaz.png
在圖中，直徑AB平分弦CD,並與CD相交於M
若 ∠OCM=32。 求∠OCA
麻煩大家幫幫忙....Thank you
圓形求角度 麻煩大家幫幫忙....
2009-06-27 11:08 pm
回答 (2)
2009-06-27 11:23 pm
2009-06-27 11:27 pm
OMC=90
COA=90+32
=122
CO=OA
OCA=(180-122)/2
=29
COA=90+32
=122
CO=OA
OCA=(180-122)/2
=29
收錄日期: 2021-04-13 16:41:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090627000051KK00998