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Simplifying
207.24 = 3.14r2
Solving
207.24 = 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.
207.24 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
207.24 + -3.14r2 = 0.00
Add '-207.24' to each side of the equation.
207.24 + -207.24 + -3.14r2 = 0.00 + -207.24
Combine like terms: 207.24 + -207.24 = 0.00
0.00 + -3.14r2 = 0.00 + -207.24
-3.14r2 = 0.00 + -207.24
Combine like terms: 0.00 + -207.24 = -207.24
-3.14r2 = -207.24
Divide each side by '-3.14'.
r2 = 66
Simplifying
r2 = 66
Take the square root of each side:
r = {-8.124038405, 8.124038405}
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