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Touching Circles

Lecture



It is said that two circles are tangent if they have a single common point. This point is called the tangency point of the circles. Through the point of tangency, one can draw a tangent to one of the circles, which is simultaneously a tangent to another circle. Touching the circles is internal and external.
A tangency is called internal if the centers of the circles lie on one side of the tangent.
A tangency is called external if the centers of the circles lie on opposite sides of the tangent

  Touching Circles
created: 2014-10-05
updated: 2021-01-10
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Planometry

Terms: Planometry