113.04=3.14*3.14r^2

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Solution for 113.04=3.14*3.14r^2 equation: 


Simplifying
113.04 = 3.14 * 3.14r2

Multiply 3.14 * 3.14
113.04 = 9.8596r2

Solving
113.04 = 9.8596r2

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-9.8596r2' to each side of the equation.
113.04 + -9.8596r2 = 9.8596r2 + -9.8596r2

Combine like terms: 9.8596r2 + -9.8596r2 = 0.0000
113.04 + -9.8596r2 = 0.0000

Add '-113.04' to each side of the equation.
113.04 + -113.04 + -9.8596r2 = 0.0000 + -113.04

Combine like terms: 113.04 + -113.04 = 0.00
0.00 + -9.8596r2 = 0.0000 + -113.04
-9.8596r2 = 0.0000 + -113.04

Combine like terms: 0.0000 + -113.04 = -113.04
-9.8596r2 = -113.04

Divide each side by '-9.8596'.
r2 = 11.46496815

Simplifying
r2 = 11.46496815

Take the square root of each side:
r = {-3.385995887, 3.385995887}

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