另請參閱
角,
共圓,
餘弦圓,
餘弦六邊形,
第一萊莫恩圓,
超平行,
萊莫恩六邊形,
平行,
塔克圓,
塔克六邊形
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參考文獻
Casey, J. "Theory of Isogonal and Isotomic Points, and of Antiparallel and Symmedian Lines." Supp. Ch. §1 in A Sequel to the First Six Books of the Elements of Euclid, Containing an Easy Introduction to Modern Geometry with Numerous Examples, 5th ed., rev. enl. Dublin: Hodges, Figgis, & Co., pp. 165-173, 1888.Coolidge, J. L. A Treatise on the Geometry of the Circle and Sphere. New York: Chelsea, p. 65, 1971.Honsberger, R. "Parallels and Antiparallels." §9.1 in Episodes in Nineteenth and Twentieth Century Euclidean Geometry. Washington, DC: Math. Assoc. Amer., pp. 87-88, 1995.Johnson, R. A. Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Boston, MA: Houghton Mifflin, p. 172, 1929.Lachlan, R. §113 in An Elementary Treatise on Modern Pure Geometry. London: Macmillian, p. 63, 1893.Phillips, A. W. and Fisher, I. Elements of Geometry. New York: American Book Co., 1896. 參考
反平行
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埃裡克·韋斯坦因 "反平行。" 來自 —— 資源。 https://mathworld.tw/Antiparallel.html
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