# Radius of Gyration of Circle

Radius of gyration of circle is the square root of the moment of inertia of that circular section divided by its area.

Mathematically circular radius of gyration can be easily found by using equation;

$$K=\sqrt{\frac{I}{A}}$$

….

$$K =\sqrt{\frac{ΠD^{4}/64}{ΠD^{2}/4}}$$

..