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Mathematics 14 Online
OpenStudy (anonymous):

Area of a circle = p · r2 i know r is for radius but p stands for what when your solving 40/360 or 1/9 of the area. I know radius is 2 so it be P times 2^2 but what number is P

OpenStudy (y2o2):

\[\huge p = \pi \approx 3.14\]

OpenStudy (y2o2):

it's called pi , and it's a very important mathematical constant

OpenStudy (anonymous):

oh pie yeah i was confused with perimeter

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