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GeoGebraGeoGebra Classroom

Tangent & Secant Segments

Adjust the Circle, Tangent Line, and Secant Line and observe the Proportional Relationship between the segments connecting to the circle. The product of the distances from the Intersection Point to the Circle is constant!
Adjust the Circle, Tangent Line, and Secant Line and observe the Proportional Relationship between the segments connecting to the circle. The product of the distances from the Intersection Point to the Circle is constant!