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Geometrical Properties of Square


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Side length

a = m

Area

A = a2 m2

Centroid

zc = yc = a/2 m

Perimeter

P = 4·a m

Second moments of area

Iz = Iy = a4/12 m4

Polar moment of area

Ix = 2·Iy m4

Radii of gyration

rz = ry = √Iy/A m

rx = √Ix/A m


Substitute