108.16=r^2

Solution for 108.16=r^2 equation:

Simplifying
108.16 = r2

Solving
108.16 = 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.
108.16 + -1r2 = r2 + -1r2

Combine like terms: r2 + -1r2 = 0
108.16 + -1r2 = 0

Add '-108.16' to each side of the equation.
108.16 + -108.16 + -1r2 = 0 + -108.16

Combine like terms: 108.16 + -108.16 = 0.00
0.00 + -1r2 = 0 + -108.16
-1r2 = 0 + -108.16

Combine like terms: 0 + -108.16 = -108.16
-1r2 = -108.16

Divide each side by '-1'.
r2 = 108.16

Simplifying
r2 = 108.16

Take the square root of each side:
r = {-10.4, 10.4}