<https://k12.libretexts.org/Bookshelves/Mathematics/Geometry/06%3A_Circles/6.19%3A_Intersecting_Secants_Theorem>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://k12.libretexts.org/Bookshelves/Mathematics/Geometry/06%3A_Circles/6.19%3A_Intersecting_Secants_Theorem>