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 geometry - help please

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T O P I C    R E V I E W
raghu Posted - 04/13/2009 : 21:05:58
In circle O, chords AB and CD intersect at right angles at E. If AE = 20, EB = 36 and CE = 24,what is the circumference of the circle ?
These two chords are not diameters. How can I find diamater?
All I know is AE.EB = CE.ED and I can find ED = 30. How can I proceed from here?

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