Power of a Point Theorem/Introductory Problem 1
Revision as of 08:19, 1 July 2006 by Joml88 (talk | contribs) (Power of a Point Theorem Introductory Problem 1 moved to Power of a Point Theorem/Introductory Problem 1)
Problem
Find the value of 
in the following diagram:
Solution
Applying the Power of a Point Theorem gives us 
. Expanding and simplifying we get 
. This factors as 
We discard the negative solution since distance must be positive. Thus 
.
Back to the Power of a Point Theorem.
