68592.7976=4*3.14r^2

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Solution for 68592.7976=4*3.14r^2 equation: 


Simplifying
68592.7976 = 4 * 3.14r2

Multiply 4 * 3.14
68592.7976 = 12.56r2

Solving
68592.7976 = 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.
68592.7976 + -12.56r2 = 12.56r2 + -12.56r2

Combine like terms: 12.56r2 + -12.56r2 = 0.00
68592.7976 + -12.56r2 = 0.00

Add '-68592.7976' to each side of the equation.
68592.7976 + -68592.7976 + -12.56r2 = 0.00 + -68592.7976

Combine like terms: 68592.7976 + -68592.7976 = 0.0000
0.0000 + -12.56r2 = 0.00 + -68592.7976
-12.56r2 = 0.00 + -68592.7976

Combine like terms: 0.00 + -68592.7976 = -68592.7976
-12.56r2 = -68592.7976

Divide each side by '-12.56'.
r2 = 5461.21

Simplifying
r2 = 5461.21

Take the square root of each side:
r = {-73.9, 73.9}

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