3419.46=3.14*r^2

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Solution for 3419.46=3.14*r^2 equation: 


Simplifying
3419.46 = 3.14r2

Solving
3419.46 = 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.
3419.46 + -3.14r2 = 3.14r2 + -3.14r2

Combine like terms: 3.14r2 + -3.14r2 = 0.00
3419.46 + -3.14r2 = 0.00

Add '-3419.46' to each side of the equation.
3419.46 + -3419.46 + -3.14r2 = 0.00 + -3419.46

Combine like terms: 3419.46 + -3419.46 = 0.00
0.00 + -3.14r2 = 0.00 + -3419.46
-3.14r2 = 0.00 + -3419.46

Combine like terms: 0.00 + -3419.46 = -3419.46
-3.14r2 = -3419.46

Divide each side by '-3.14'.
r2 = 1089

Simplifying
r2 = 1089

Take the square root of each side:
r = {-33, 33}

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