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Steve B
Posts:
16
Registered:
12/8/09


Re: Rectangle Area
Posted:
Jan 11, 2010 3:05 PM


> > Note the fact that triangle ADE is similar to > > triangle GDC. > > > > Therefore we have: > > > > DG/DC = AD/DE > > > > It can be rewritten as: > > > > DG*DE = AD*DC which means that S1 = S2 > > > > > http://www.idealmath.com/geometrytheorem/similartriang > > > le.htm > > Hi Peter, > > many thanks for another excellent solution to the > problem. > The puzzle was simple, but what makes it interesting > is that it can be solved using many different > approaches. > > Best regards, > Avni
It is also interesting because it was, to me at least, initially counterintuitive
Steve



