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oops_yz 2010-04-08 10:56:02 ( reads)

2. 正三角形和中点,三条边相同,中点到三点距离相同
3. 两个正三角构成的菱形,one对角线和四边相同,另一条不同
4. abc 三角,d is inside abc. ad=bd=cd=bc, ab=ac

跟帖(2)

longsky

2010-04-08 11:04:21

5. abc 正三角,d is outside abc. ad=ab=bc=ac, bd=cd

oops_yz

2010-04-08 11:06:15

This is the same as my 4