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Simplifying
237.666 = 3.14r2
Solving
237.666 = 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.
237.666 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
237.666 + -3.14r2 = 0.00
Add '-237.666' to each side of the equation.
237.666 + -237.666 + -3.14r2 = 0.00 + -237.666
Combine like terms: 237.666 + -237.666 = 0.000
0.000 + -3.14r2 = 0.00 + -237.666
-3.14r2 = 0.00 + -237.666
Combine like terms: 0.00 + -237.666 = -237.666
-3.14r2 = -237.666
Divide each side by '-3.14'.
r2 = 75.68980892
Simplifying
r2 = 75.68980892
Take the square root of each side:
r = {-8.699989018, 8.699989018}
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