125.78=r^2

Solution for 125.78=r^2 equation:

Simplifying
125.78 = r2

Solving
125.78 = r2

Solving for variable 'r'.

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

Add '-1r2' to each side of the equation.
125.78 + -1r2 = r2 + -1r2

Combine like terms: r2 + -1r2 = 0
125.78 + -1r2 = 0

Add '-125.78' to each side of the equation.
125.78 + -125.78 + -1r2 = 0 + -125.78

Combine like terms: 125.78 + -125.78 = 0.00
0.00 + -1r2 = 0 + -125.78
-1r2 = 0 + -125.78

Combine like terms: 0 + -125.78 = -125.78
-1r2 = -125.78

Divide each side by '-1'.
r2 = 125.78

Simplifying
r2 = 125.78

Take the square root of each side:
r = {-11.2151683, 11.2151683}