Varignon's theorem: Difference between revisions

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== References and further reading ==
*H. S. M. Coxeter, S. L. Greitzer: ''Geometry Revisited''. MAA, Washington 1967, pp. 52-54
*Peter N. Oliver: [httphttps://wwwold.maa.org/sites/default/files/images/upload_library/46/NCTM/mt2001-Varignon1Varignon2.pdf ''Consequences of Varignon Parallelogram Theorem'']. Mathematics Teacher, Band 94, Nr. 5, Mai 2001, pp. 406-408
 
==External links==