133.04=3.14*R^2

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Solution for 133.04=3.14*R^2 equation: 


Simplifying
133.04 = 3.14R2

Solving
133.04 = 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.
133.04 + -3.14R2 = 3.14R2 + -3.14R2

Combine like terms: 3.14R2 + -3.14R2 = 0.00
133.04 + -3.14R2 = 0.00

Add '-133.04' to each side of the equation.
133.04 + -133.04 + -3.14R2 = 0.00 + -133.04

Combine like terms: 133.04 + -133.04 = 0.00
0.00 + -3.14R2 = 0.00 + -133.04
-3.14R2 = 0.00 + -133.04

Combine like terms: 0.00 + -133.04 = -133.04
-3.14R2 = -133.04

Divide each side by '-3.14'.
R2 = 42.36942675

Simplifying
R2 = 42.36942675

Take the square root of each side:
R = {-6.50918019, 6.50918019}

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