See also
Circle-Circle Tangents, Circle Tangent Line, Secant Line, Tangent, Tangent Plane, Tangent Space, Tangent Vector Explore this topic in the MathWorld classroom
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References
Rhoad, R.; Milauskas, G.; and Whipple, R. Geometry for Enjoyment and Challenge, rev. ed. Evanston, IL: McDougal, Littell & Company, p. 429, 1984.Yates, R. C. "Instantaneous Center of Rotation and the Construction of Some Tangents." A Handbook on Curves and Their Properties. Ann Arbor, MI: J. W. Edwards, pp. 119-122, 1952.
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Cite this as:
Weisstein, Eric W. "Tangent Line." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/TangentLine.html