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Mathematics 10 Online
OpenStudy (rayman5766):

What is the approximate area of a circle with a radius of 13 cm? A. 40.8 cm² B. 530.7 cm² C. 784 cm² D. 2461.6 cm²

OpenStudy (anonymous):

B

OpenStudy (rayman5766):

how do you know is there an example

OpenStudy (anonymous):

A=Pi(r)^2

OpenStudy (anonymous):

ok?

OpenStudy (anonymous):

thats the formula doofus

OpenStudy (rayman5766):

you put a ? this after you said ok so I thought you were confused jerk

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