AD = AE. So intersection chord of A and E is equal to one of A and D. i.e. FG = BC = 1.
回复:FG=1?
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• The intui tion solution. 15young ,this is ... -jinjing- ♀ (1417 bytes) () 08/12/2011 postreply 09:03:06
AD = AE. So intersection chord of A and E is equal to one of A and D. i.e. FG = BC = 1.
• The intui tion solution. 15young ,this is ... -jinjing- ♀ (1417 bytes) () 08/12/2011 postreply 09:03:06