Picture: http://postimg.org/image/xuaz2x2ab/
In the figure, arc AB=arc BC=arc CD=arc DA and BE=CE. AD and DC are
produced to meet at F. It is known that triangle ABE congruent to triangle FCE.
Join BF. Determine whether BF is the tangent to the circle at B.
Please help, Thank you!!
F.5 maths circle
2014-12-04 7:45 am
回答 (1)
2014-12-04 9:35 am
收錄日期: 2021-04-15 17:26:18
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20141203000051KK00131