Geometrical Properties of Square Rhombus

Side length

a =   m

Diagonal length

d =  √2·a² m

Area

A = a² m²

Centroid

z_c = y_c = d2

Perimeter

P = 4·a m

Second moments of area

I_z = I_y = d⁴48 m⁴

Polar moment of area

I_x = 2·I_y m⁴

Radii of gyration

r_z = r_y =  I_yA

r_x =  I_xA m