Point $B$ is a point of tangency. Find the radius $r$ of $\odot C.$

Module 10 coordinate proof using slope and distance answers is quadrilateral abcd a parallelogram? explain how you know.

Just tell me how to set up the equation.

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1