Geometry Tutorial #4 -Circles (Practice)

#IMO​ #Geometry #MathOlympiad​ In this video we we apply the technique of power of point, radical axis, and contact triangle lengths on various Olympiad Geometry Problems including problems from all different National Math Olympiads (USAMO, Russian MO, Canada MO). 00:00 Intro 0:36 Ex1: USAMO 2009/1 12:07 Ex1: An unnoticable case 25:29 Ex2: Euler's Theorem 38:23 Ex3: Russian MO/2010 01:01:30 Ex4: Canada 2007/5 a Tough angle-chasing 01:18:42 Summary Thanks to Arc for desigining the thumbnail. Inequalities playlist: https://youtube.com/playlist?list=PL1qInO9wTp3mgEn4_X2niePNxrX26OJBl&si=ELV8IYRYz5cyq0sG IMO Past Problems: https://youtube.com/playlist?list=PL1qInO9wTp3kBq7mFRtDauNbuQnddGd6H Functional Equations playlist: https://youtube.com/playlist?list=PL1qInO9wTp3lh0uGN9W6JufoBk7g0BDCL Geometry playlist: https://youtube.com/playlist?list=PL1qInO9wTp3lG6O06huPmQjR1kpeLDI76&si=DBuTjkYVTqTaMLIM Shorts: https://youtube.com/playlist?list=PL1qInO9wTp3m388GGbyWbw85LZRhn3dQw __________________________________________________________________________________________ I upload videos concerning math Olympiad contests to help students preparing for math Olympiad and all people who share the love for some interesting math problems. Don't forget to subscribe to the channel! __________________________________________________________________________________________ Email me your thoughts! ([email protected]) Discord server: https://discord.gg/RcP9eX9yg2 Donate: https://www.paypal.com/paypalme/hommeida?locale.x=en_US