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Simplifying
6358.5 = 3.14r2
Solving
6358.5 = 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.
6358.5 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
6358.5 + -3.14r2 = 0.00
Add '-6358.5' to each side of the equation.
6358.5 + -6358.5 + -3.14r2 = 0.00 + -6358.5
Combine like terms: 6358.5 + -6358.5 = 0.0
0.0 + -3.14r2 = 0.00 + -6358.5
-3.14r2 = 0.00 + -6358.5
Combine like terms: 0.00 + -6358.5 = -6358.5
-3.14r2 = -6358.5
Divide each side by '-3.14'.
r2 = 2025
Simplifying
r2 = 2025
Take the square root of each side:
r = {-45, 45}
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