144=3.14R^2

Solution for 144=3.14R^2 equation:

Simplifying
144 = 3.14R2

Solving
144 = 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.
144 + -3.14R2 = 3.14R2 + -3.14R2

Combine like terms: 3.14R2 + -3.14R2 = 0.00
144 + -3.14R2 = 0.00

Add '-144' to each side of the equation.
144 + -144 + -3.14R2 = 0.00 + -144

Combine like terms: 144 + -144 = 0
0 + -3.14R2 = 0.00 + -144
-3.14R2 = 0.00 + -144

Combine like terms: 0.00 + -144 = -144
-3.14R2 = -144

Divide each side by '-3.14'.
R2 = 45.85987261

Simplifying
R2 = 45.85987261

Take the square root of each side:
R = {-6.771991776, 6.771991776}