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t1497f35
May 15th, 2012, 08:44 PM
Hi,
the answer to (b) is SAS, but I don't get it - why is BD congruent to CE? (otherwise we don't get SAS). See screenshot.

ofnuts
May 15th, 2012, 08:54 PM
Hi,
the answer to (b) is SAS, but I don't get it - why is BD congruent to CE? (otherwise we don't get SAS). See screenshot.
BD=BE-DE and CE=BE-BC and BC=DE

t1497f35
May 15th, 2012, 08:56 PM
BD=BE-DE and CE=BE-BC and BC=DE

Oh yes.. I see, thanks a lot!