150.9546=3.14r^2

Solution for 150.9546=3.14r^2 equation:

Simplifying
150.9546 = 3.14r2

Solving
150.9546 = 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.
150.9546 + -3.14r2 = 3.14r2 + -3.14r2

Combine like terms: 3.14r2 + -3.14r2 = 0.00
150.9546 + -3.14r2 = 0.00

Add '-150.9546' to each side of the equation.
150.9546 + -150.9546 + -3.14r2 = 0.00 + -150.9546

Combine like terms: 150.9546 + -150.9546 = 0.0000
0.0000 + -3.14r2 = 0.00 + -150.9546
-3.14r2 = 0.00 + -150.9546

Combine like terms: 0.00 + -150.9546 = -150.9546
-3.14r2 = -150.9546

Divide each side by '-3.14'.
r2 = 48.07471338

Simplifying
r2 = 48.07471338

Take the square root of each side:
r = {-6.933593107, 6.933593107}