Locus of Intersection of Orthogonal Tangents to an Ellipse

2019-03-14 05:07
This applet demonstrates the locus of intersection points of two orthogonal tangents to an ellipse. In coordinate geometry, this locus forms a concentric circle known as the director circle. Using tangent, orthogonal line, and locus commands, it dynamically visualizes how the intersection traces this circle, verifying this classic property.