379.94=r^2*3.1

Solution for 379.94=r^2*3.1 equation:

Simplifying
379.94 = r2 * 3.1

Reorder the terms for easier multiplication:
379.94 = 3.1r2

Solving
379.94 = 3.1r2

Solving for variable 'r'.

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

Add '-3.1r2' to each side of the equation.
379.94 + -3.1r2 = 3.1r2 + -3.1r2

Combine like terms: 3.1r2 + -3.1r2 = 0.0
379.94 + -3.1r2 = 0.0

Add '-379.94' to each side of the equation.
379.94 + -379.94 + -3.1r2 = 0.0 + -379.94

Combine like terms: 379.94 + -379.94 = 0.00
0.00 + -3.1r2 = 0.0 + -379.94
-3.1r2 = 0.0 + -379.94

Combine like terms: 0.0 + -379.94 = -379.94
-3.1r2 = -379.94

Divide each side by '-3.1'.
r2 = 122.5612903

Simplifying
r2 = 122.5612903

Take the square root of each side:
r = {-11.070740278, 11.070740278}