Art of Problem Solving: Area of a Circle Part 1

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Art of Problem Solving's Richard Rusczyk describes how to find the area of a circle.
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Thank you so much! I hate when teachers don't explain why the formula works and so I watched this!!

laxmipriyagoswami
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This is a great video with excellent supporting graphics... well done!
I have popsted a link to it from my Passy's World of Mathematics site for my math students to use. Keep making these great videos!

passyworldofict
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It is very easy and I made this very nicely

shivcharan