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77ant
Riemann Hypothesis
Riemann Hypothesis


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Dear everyone.

Please think of the following.
for a quadrilateral ABCD, let M, N be the midpoints of AD, BC respectively.
\squareABNM=30, \squareCDMN=40, \triangleABC=35. AC\capBD=P, BD\capMN=Q, MN\capAC=R. Find the area of \trianglePQR.

Thank you for reading. Smile
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PostPosted: Wed Nov 04, 2009 11:17 am  Back to top 
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castigioni
Poincare Conjecture
Poincare Conjecture

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Is the area=20/7?

PostPosted: Thu Nov 05, 2009 9:13 am  Back to top 
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