Geometric Locus of a Moving Circle Tangent to Two Fixed Circles (2)

2021-01-07 02:31
This GeoGebra applet demonstrates the locus of a moving circle externally and internally tangent to two fixed circles. Users can observe the distance relationships between their centers and the resulting trajectory. Using circle definitions and geometric transformations, it serves as a classic construction for studying conic sections and Apollonian circles in high school geometry.