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Simplifying
232.2344 = 4 * 3.14r2
Multiply 4 * 3.14
232.2344 = 12.56r2
Solving
232.2344 = 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.
232.2344 + -12.56r2 = 12.56r2 + -12.56r2
Combine like terms: 12.56r2 + -12.56r2 = 0.00
232.2344 + -12.56r2 = 0.00
Add '-232.2344' to each side of the equation.
232.2344 + -232.2344 + -12.56r2 = 0.00 + -232.2344
Combine like terms: 232.2344 + -232.2344 = 0.0000
0.0000 + -12.56r2 = 0.00 + -232.2344
-12.56r2 = 0.00 + -232.2344
Combine like terms: 0.00 + -232.2344 = -232.2344
-12.56r2 = -232.2344
Divide each side by '-12.56'.
r2 = 18.49
Simplifying
r2 = 18.49
Take the square root of each side:
r = {-4.3, 4.3}
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