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Mathematics 9 Online
OpenStudy (anonymous):

http://prntscr.com/5zhv9x @freckles @sleepyjess

OpenStudy (anonymous):

4 people in 10 seconds, new highscore.

OpenStudy (anonymous):

Pi.

OpenStudy (sleepyjess):

you are correct, but how did you get there?

OpenStudy (dtan5457):

You got it right. The formula for area is \[\pi r^2\]

OpenStudy (anonymous):

thx

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