950.6664=4*3.14*r^2

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Solution for 950.6664=4*3.14*r^2 equation: 


Simplifying
950.6664 = 4 * 3.14r2

Multiply 4 * 3.14
950.6664 = 12.56r2

Solving
950.6664 = 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.
950.6664 + -12.56r2 = 12.56r2 + -12.56r2

Combine like terms: 12.56r2 + -12.56r2 = 0.00
950.6664 + -12.56r2 = 0.00

Add '-950.6664' to each side of the equation.
950.6664 + -950.6664 + -12.56r2 = 0.00 + -950.6664

Combine like terms: 950.6664 + -950.6664 = 0.0000
0.0000 + -12.56r2 = 0.00 + -950.6664
-12.56r2 = 0.00 + -950.6664

Combine like terms: 0.00 + -950.6664 = -950.6664
-12.56r2 = -950.6664

Divide each side by '-12.56'.
r2 = 75.69

Simplifying
r2 = 75.69

Take the square root of each side:
r = {-8.7, 8.7}

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