MathDB

Two circles centers

O

and

O'

are disjoint.

PP'

is an outer tangent (with

P

on the circle center O, and P' on the circle center

O'

). Similarly,

QQ'

is an inner tangent (with

Q

on the circle center

O

, and

Q'

on the circle center

O'

). Show that the lines

PQ

and

P'Q'

meet on the line

OO'

. https://cdn.artofproblemsolving.com/attachments/b/d/bad305631571323a61b097f149a1bb6855cdc5.png

Problem Statement