Tag Archives: proofs

Midpoints of a quadrilateral form a parallelogram

Posted on February 2, 2012 by Dan

Take any quadrilateral, like this one then mark the midpoints, and connect them up. It sure looks like a parallelogram, doesn’t it? The amazing fact here is that no matter what quadrilateral you start with, you always get a parallelogram … Continue reading →

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Beautiful Mathematics

Posted on January 20, 2012 by Dan

“Beauty is the first test: there is no permanent place in the world for ugly mathematics.” – G. H. Hardy I’ve been reading Proofs from THE BOOK  by Aigner and Ziegler, a paean to beautiful mathematics. The Book refers to … Continue reading →

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