3544.9344=4*3.14*r^2

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Solution for 3544.9344=4*3.14*r^2 equation: 


Simplifying
3544.9344 = 4 * 3.14r2

Multiply 4 * 3.14
3544.9344 = 12.56r2

Solving
3544.9344 = 12.56r2

Solving for variable 'r'.

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

Add '-12.56r2' to each side of the equation.
3544.9344 + -12.56r2 = 12.56r2 + -12.56r2

Combine like terms: 12.56r2 + -12.56r2 = 0.00
3544.9344 + -12.56r2 = 0.00

Add '-3544.9344' to each side of the equation.
3544.9344 + -3544.9344 + -12.56r2 = 0.00 + -3544.9344

Combine like terms: 3544.9344 + -3544.9344 = 0.0000
0.0000 + -12.56r2 = 0.00 + -3544.9344
-12.56r2 = 0.00 + -3544.9344

Combine like terms: 0.00 + -3544.9344 = -3544.9344
-12.56r2 = -3544.9344

Divide each side by '-12.56'.
r2 = 282.24

Simplifying
r2 = 282.24

Take the square root of each side:
r = {-16.8, 16.8}

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