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In Mathematics / High School | 2014-11-30

Solve for [tex]r[/tex]:

[tex]A = 2\pi r^2[/tex]

Asked by emilyslen

Answer (2)

A = 2 π r 2 2 π A ​ = r 2 r = 2 π A ​ ​

Answered by Anonymous | 2024-06-10

To solve for r in the equation A = 2 π r 2 , isolate r 2 by dividing by 2 π and then take the square root. This gives r as r = 2 π A ​ ​ . Substitute any area value into this formula to find the corresponding radius.
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Answered by Anonymous | 2024-12-26