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Tangents between two Circles
Author:
Narlin Beaty
Topic:
Circle
GeoGebra
Shows how to set up 4 equations in 4 unknowns to find the 8 tangent points whenever tangent lines are drawn between 2 circles.
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Discover Topics
Pythagoras or Pythagorean Theorem
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Incircle or Inscribed Circle
Calculus
Linear Programming or Linear Optimization