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C
_{x}
C
_{y}
Area
Moment of Inertia
about the x
_{c}
axis
I
_{xc}
Moment of Inertia
about the y
_{c}
axis
I
_{yc}
Polar Moment of Inertia
about the z
_{c}
axis
J
_{zc}
=
I
_{xc}
+
I
_{yc}
Radius of Gyration
about the
x
_{c}
axis
>k
_{xc}
Radius of Gyration
about the
y
_{c}
axis
k
_{yc}
Radius of Gyration
about the
z
_{c}
axis
r
_{zc}
r
_{zc}
^{2}
=
k
_{xc}
^{2}
+
k
_{yc}
^{2}