474.1651=3.14r^2

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Solution for 474.1651=3.14r^2 equation: 


Simplifying
474.1651 = 3.14r2

Solving
474.1651 = 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.
474.1651 + -3.14r2 = 3.14r2 + -3.14r2

Combine like terms: 3.14r2 + -3.14r2 = 0.00
474.1651 + -3.14r2 = 0.00

Add '-474.1651' to each side of the equation.
474.1651 + -474.1651 + -3.14r2 = 0.00 + -474.1651

Combine like terms: 474.1651 + -474.1651 = 0.0000
0.0000 + -3.14r2 = 0.00 + -474.1651
-3.14r2 = 0.00 + -474.1651

Combine like terms: 0.00 + -474.1651 = -474.1651
-3.14r2 = -474.1651

Divide each side by '-3.14'.
r2 = 151.0079936

Simplifying
r2 = 151.0079936

Take the square root of each side:
r = {-12.288530978, 12.288530978}

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