SA=4(3.14)r^2

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Solution for SA=4(3.14)r^2 equation: 


Simplifying
SA = 4(3.14) * r2

Multiply 4 * 3.14
AS = 12.56r2

Solving
AS = 12.56r2

Solving for variable 'A'.

Move all terms containing A to the left, all other terms to the right.

Divide each side by 'S'.
A = 12.56r2S-1

Simplifying
A = 12.56r2S-1

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