Square Tube Center Formula

Equation for calculate square tube center is,

Inertia = (a⁴ - b⁴) / 12
Modulus = (a⁴ - b⁴) / 6 * a
Radius = ((a² + b²) / 12)^1/2
Area = a² - b²

Where,
A = Area of Annulus (Annular)
R = Radius of the Outer Circle
H = Radius of the Inner Circle