Problem #PRU-56593

Problems Geometry Plane geometry Circles Inscribed angle Angles supported by congruent arcs and chords

Problem

On the circle, the points $A, B, C$ and $D$ are given. The lines $A B$ and $C D$ intersect at the point $M$ . Prove that $A C \times A D / A M = B C \times B D / B M$ .

To see the solution register and get verified.