참고문헌
- H. S. M. Coxeter, Introduction to Geometry, John Wiley & Sons, Inc., New York, 1961.
- H. S. M. Coxeter and S. L. Greitzer, Geometry revisited, New Mathematical Library, 19, Random House, Inc., New York, 1967.
- A. Emch, On the medians of a closed convex polygon, Amer. J. Math. 37 (1915), no. 1, 19-28. https://doi.org/10.2307/2370252
- Euclid, Euclid's Elements of Geometry, Edited and provided with a modern English translation by Richard Fitzpatrick, 2007.
- R. A. Johnson, Advanced Euclidean geometry: An elementary treatise on the geometry of the triangle and the circle, Dover Publications, Inc., New York, 1960.
- B. Khorshidi, A new method for finding the center of gravity of polygons, J. Geom. 96 (2009), no. 1-2, 81-91. https://doi.org/10.1007/s00022-010-0027-1
- D.-S. Kim, K. S. Lee, K. B. Lee, Y. I. Lee, S. Son, J. K. Yang, and D. W. Yoon, Centroids and some characterizations of parallelograms, Commun. Korean Math. Soc. 31 (2016), no. 3, 637-645. https://doi.org/10.4134/CKMS.c150165
- R. B. Kirchner, Classroom notes: A generalization of the median theorem for triangles, Amer. Math. Monthly 69 (1962), no. 7, 650. https://doi.org/10.2307/2310839
- N. Lord, 92.22 Maths bite: averaging polygons, Math. Gaz. 92 (2008), no. 523, 134.
- M. F. Mammana, B. Micale, and M. Pennisi, On the centroids of polygons and polyhedra, Forum Geom. 8 (2008), 121-130.
- E. E. Moise, Elementary Geometry from an Advanced Standpoint, third edition, Addison-Wesley Publishing Company, Advanced Book Program, Reading, MA, 1990.
- P. N. Oliver, Consequences of the Varignon parallelogram theorem, The Mathematics Teacher 94 (2001), no. 5, 406-408.
- A. Ostermann and G. Wanner, Geometry by Its History, Springer, Heidelberg, 2012. https://doi.org/10.1007/978-3-642-29163-0
- A. Palatnik, Proof without words: Varignon's theorem, College Math. J. 48 (2017), no. 5, 354. https://doi.org/10.4169/college.math.j.48.5.354
- G. C. Shephard, Centroids of polygons and polyhedra, Math. Gaz. 74 (1990), no. 467, 42-43. https://doi.org/10.2307/3618848
- J. Stillwell, The Four Pillars of Geometry, Springer, New York, 2005.
- P. Varignon, Elemens de Mathematique de Monsieur Varignon, Springer, Paris, 1731.