1 km2 is equal to:
Conversely:
The 1 E6 mē orders of magnitude page gives comparisons with geographic areas. See also Conversion of units.
External link
... square roots of both sides yields <math>x+\frac{b}{2a}=\frac{\pm\sqrt{b^2-4ac}}{2a}.</math> Subtracting b/(2a) ...