Given the example dimensions of a composite section:

a$=11/16$

b$=1$

c $=1/8$

t $=0\mathrm{.}05$

t$\_1=0\mathrm{.}05$

t$\_2=0\mathrm{.}05$

r $=3/32$

Please provide the formulas to calculate:

Ixx $($second moment of inertia about the x$-$axis$)$

Expected result: Ixx$=0\mathrm{.}0218$

Iyy $($second moment of inertia about the y$-$axis$)$

Expected result: Iyy$=0\mathrm{.}0163$

The centroid coordinates $($x$,$ y$)$

Expected result: x$=0\mathrm{.}5,$ y$=0\mathrm{.}6625$