另請參閱
Fontené 定理,
Griffiths' 定理,
Miquel 點,
九點圓,
垂足線,
垂足三角形
使用 探索
參考文獻
Coolidge, J. L. A Treatise on the Geometry of the Circle and Sphere. New York: Chelsea, p. 50, 1971.Fontené, G. "Sur le cercle pédal." Nouv. Ann. Math. 65, 55-58, 1906.Honsberger, R. More Mathematical Morsels. Washington, DC: Math. Assoc. Amer., p. 54, 1991.Honsberger, R. "The Pedal Circle." §7.4 (viii) in Episodes in Nineteenth and Twentieth Century Euclidean Geometry. Washington, DC: Math. Assoc. Amer., pp. 67-69, 1995.Johnson, R. A. Modern Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle. Boston, MA: Houghton Mifflin, 1929.在 上被引用
垂足圓
引用為
Weisstein, Eric W. "垂足圓。" 來自 Web 資源。 https://mathworld.tw/PedalCircle.html
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