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Simplifying
250 = 3.14r2
Solving
250 = 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.
250 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
250 + -3.14r2 = 0.00
Add '-250' to each side of the equation.
250 + -250 + -3.14r2 = 0.00 + -250
Combine like terms: 250 + -250 = 0
0 + -3.14r2 = 0.00 + -250
-3.14r2 = 0.00 + -250
Combine like terms: 0.00 + -250 = -250
-3.14r2 = -250
Divide each side by '-3.14'.
r2 = 79.61783439
Simplifying
r2 = 79.61783439
Take the square root of each side:
r = {-8.922882628, 8.922882628}
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