AoPSWiki
Want to learn how to tackle those tough MATHCOUNTS and AMC counting and probability problems? Check out Art of Problem Solving's Introduction to Counting & Probability by David Patrick.
Personal tools

Power of a Point Theorem/Introductory Problem 2

From AoPSWiki

Problem

Find the value of in the following diagram.

Image:popprob2.PNG

Solution

Applying the Power of a Point Theorem gives , or

Back to the Power of a Point Theorem.

Looking for a challenging geometry text? Preparing for MATHCOUNTS or the AMC exams? Check out Art of Problem Solving's Introduction to Geometry by Richard Rusczyk.
© Copyright 2008 AoPS Incorporated. All Rights Reserved. • FoundationPrivacyContact Us