12.56in^2=4*3.14r^2

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Solution for 12.56in^2=4*3.14r^2 equation: 


Simplifying
12.56in2 = 4 * 3.14r2

Multiply 4 * 3.14
12.56in2 = 12.56r2

Solving
12.56in2 = 12.56r2

Solving for variable 'i'.

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

Divide each side by '12.56n2'.
i = n-2r2

Simplifying
i = n-2r2

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