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Vilka [71]
3 years ago
8

A=2πr solve for π‍‍‍

Mathematics
1 answer:
pishuonlain [190]3 years ago
6 0
A=2\pi r\\\\2\pi r=A\ \ \ \ |divide\ both\ sides\ by\ 2r\\\\\boxed{\pi=\frac{A}{2r}}
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