May 7th, 2013, 12:58 PM  #1 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 9,780 Thanks: 651  Pair of Quads Code: D D B B C A C A Left: a=BC, b=AC, c=AB, d=BD, e=AD Right:a=BC, b=AC, c=AB, e=BD, d=AD (in other words, point D moved!) ALL above lengths are integers. Left: diagonal CD = 56 Right:diagonal CD = 63 Of course, both have the same area: what is it? 

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