8167.14=3.14r^2

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Solution for 8167.14=3.14r^2 equation: 


Simplifying
8167.14 = 3.14r2

Solving
8167.14 = 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.
8167.14 + -3.14r2 = 3.14r2 + -3.14r2

Combine like terms: 3.14r2 + -3.14r2 = 0.00
8167.14 + -3.14r2 = 0.00

Add '-8167.14' to each side of the equation.
8167.14 + -8167.14 + -3.14r2 = 0.00 + -8167.14

Combine like terms: 8167.14 + -8167.14 = 0.00
0.00 + -3.14r2 = 0.00 + -8167.14
-3.14r2 = 0.00 + -8167.14

Combine like terms: 0.00 + -8167.14 = -8167.14
-3.14r2 = -8167.14

Divide each side by '-3.14'.
r2 = 2601

Simplifying
r2 = 2601

Take the square root of each side:
r = {-51, 51}

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