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Anonymous1: C=2pi*r, not pi*r^2. Nice try though.
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Thrakerzod: A[sub]○[/sib]= πr2
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Sobana: @Thrakerzod: A= πr2 Go back to high school.
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pussy_eevee: dat second grade equation
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Thrakerzod: @Sobana: No, Area has to be squared otherwise you are still talking about a plainer distance. Hence why area has units like Inches2 instead of regular inches.
Circumference: C=πr2
Area: A=πr2
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Anonymous2: @Thrakerzod: This is correct.

Also quadratic formula is wrong.

It should be (-b +/- sqrt(b^2 -4ac))/2a. It's missing the "+/-" part.


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