Question

Geometry question

Answer 1

Find \(CD\) in terms of \(r_1\) , \(r_2\) and \(AB\).

Answer 2

segment \(CD\) is a common tangent

Answer 3

have you tried it yet?

Answer 4

\(CX=r_1-r_2\\
CD^2=AB^2-(r_1-r_2)^2\)

got it now

Answer 5

very good :-)

Answer 6

or :-)

Answer 7

cool