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Simplifying
237.6666 = 3.14r2
Solving
237.6666 = 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.
237.6666 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
237.6666 + -3.14r2 = 0.00
Add '-237.6666' to each side of the equation.
237.6666 + -237.6666 + -3.14r2 = 0.00 + -237.6666
Combine like terms: 237.6666 + -237.6666 = 0.0000
0.0000 + -3.14r2 = 0.00 + -237.6666
-3.14r2 = 0.00 + -237.6666
Combine like terms: 0.00 + -237.6666 = -237.6666
-3.14r2 = -237.6666
Divide each side by '-3.14'.
r2 = 75.69
Simplifying
r2 = 75.69
Take the square root of each side:
r = {-8.7, 8.7}
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