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Mathematics 18 Online
OpenStudy (heretostudy):

what is pi?

OpenStudy (unklerhaukus):

pi is the ratio of the circumference of a circle, to its diameter \[\pi = C/d\]

OpenStudy (unklerhaukus):

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OpenStudy (unklerhaukus):

numerically, the circumference is about three times as longer as the diameter

OpenStudy (heretostudy):

aha! so why does the area of a circle have to be pi times the area of the square whose side is its radius? why this ratio specifically?

OpenStudy (unklerhaukus):

the radius is half the diameter

OpenStudy (unklerhaukus):

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OpenStudy (unklerhaukus):

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