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Simplifying
4775.94 = 3.14r2
Solving
4775.94 = 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.
4775.94 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
4775.94 + -3.14r2 = 0.00
Add '-4775.94' to each side of the equation.
4775.94 + -4775.94 + -3.14r2 = 0.00 + -4775.94
Combine like terms: 4775.94 + -4775.94 = 0.00
0.00 + -3.14r2 = 0.00 + -4775.94
-3.14r2 = 0.00 + -4775.94
Combine like terms: 0.00 + -4775.94 = -4775.94
-3.14r2 = -4775.94
Divide each side by '-3.14'.
r2 = 1521
Simplifying
r2 = 1521
Take the square root of each side:
r = {-39, 39}
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