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Solve for r. A = ½r²y
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Solve for r.

A = ½r²y

User Lawrence Choy
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Solve for r.

A = ½r²y




A= (1)/(2)r^2y \\ \\ A*2= r^2 y \\ \\ \\ (2A)/(y)= r^2 \\ \\ \\ \sqrt{ (2A)/(y)} = r
User Mikenerone
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