13019.9127=3.14*r^2

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Solution for 13019.9127=3.14*r^2 equation: 


Simplifying
13019.9127 = 3.14r2

Solving
13019.9127 = 3.14r2

Solving for variable 'r'.

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

Add '-3.14r2' to each side of the equation.
13019.9127 + -3.14r2 = 3.14r2 + -3.14r2

Combine like terms: 3.14r2 + -3.14r2 = 0.00
13019.9127 + -3.14r2 = 0.00

Add '-13019.9127' to each side of the equation.
13019.9127 + -13019.9127 + -3.14r2 = 0.00 + -13019.9127

Combine like terms: 13019.9127 + -13019.9127 = 0.0000
0.0000 + -3.14r2 = 0.00 + -13019.9127
-3.14r2 = 0.00 + -13019.9127

Combine like terms: 0.00 + -13019.9127 = -13019.9127
-3.14r2 = -13019.9127

Divide each side by '-3.14'.
r2 = 4146.469013

Simplifying
r2 = 4146.469013

Take the square root of each side:
r = {-64.393082027, 64.393082027}

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