_________________ If I have seen farther, it is by standing on the shoulders of the giants.---Newton
2007-02-01 20:35
isomorphism Not too shy to talk
註冊日: 2007-01-30 發表數: 40
Re: 請問九點圓該怎麼證明
This problem is a bit tricky.
Hint: Note that M,T,G are opposite P,S,N and that either triangle is the image of the half turn of the other.
2007-02-01 22:02
gkw0824usa Just can't stay away
註冊日: 2004-07-28 發表數: 143 University of Texas at Austin
Re: 請問九點圓該怎麼證明
可參考"神奇數學117" 一書 (天下文化出版社) P.225-229
_________________ Atra esternī ono thelduin Mor'ranr līfa unin hjarta onr Un du evarīnya ono varda. May good fortune rule over you Peace live in your heart And the stars watch over you.
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