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Simplifying
98.4704 = 3.14r2
Solving
98.4704 = 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.
98.4704 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
98.4704 + -3.14r2 = 0.00
Add '-98.4704' to each side of the equation.
98.4704 + -98.4704 + -3.14r2 = 0.00 + -98.4704
Combine like terms: 98.4704 + -98.4704 = 0.0000
0.0000 + -3.14r2 = 0.00 + -98.4704
-3.14r2 = 0.00 + -98.4704
Combine like terms: 0.00 + -98.4704 = -98.4704
-3.14r2 = -98.4704
Divide each side by '-3.14'.
r2 = 31.36
Simplifying
r2 = 31.36
Take the square root of each side:
r = {-5.6, 5.6}
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