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Simplifying
907.46 = 3.14r2
Solving
907.46 = 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.
907.46 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
907.46 + -3.14r2 = 0.00
Add '-907.46' to each side of the equation.
907.46 + -907.46 + -3.14r2 = 0.00 + -907.46
Combine like terms: 907.46 + -907.46 = 0.00
0.00 + -3.14r2 = 0.00 + -907.46
-3.14r2 = 0.00 + -907.46
Combine like terms: 0.00 + -907.46 = -907.46
-3.14r2 = -907.46
Divide each side by '-3.14'.
r2 = 289
Simplifying
r2 = 289
Take the square root of each side:
r = {-17, 17}
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