Power of a Point

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Grade Vs Difficulty:
  EasyModerateChallengingPerplexing
1-2
3-4
5-6
7-8
 
9-10
 
 
11-12
 
 
13-14
 

In this lesson problems related to power of a point relative to a circle are discussed. The level of the problems ranges from AMC10 to IMO. The lesson contains two sections: (1) power of a point; (2) radical axes. These sections can be presented in two math circle sessions, so that the students can work at home on the difficult problems.