clear //The given composite section can be divided into two rectangles //variable declaration A1=125.0*10.0 //Area of 1,mm^2 A2=75.0*10.0 //Area of 2,mm^2 A=A1+A2 //Total area,mm^2 //First, the centroid of the given section is to be located. Two reference axis (1)–(1) and (2)–(2) //The distance of centroid from the axis (1)–(1) X1=5.0 X2=10.0+75.0/2 xc=(A1*X1+A2*X2)/A //Similarly, the distance of the centroid from the axis (2)–(2) Y1=125.0/2 Y2=5.0 yc=(A1*Y1+A2*Y2)/A //With respect to the centroidal axis x-x and y-y, the centroid of A1 is g1 (xc-5, (85/2)-xc) and that of A2 is g2 ((135/2)-yc, yc-5). Ixx=(10*(125**3)/12)+(A1*(21.56**2))+(75.0*(10.0**3.0)/12)+(A2*((39.94)**2)) printf("\n Ixx= %0.1f mm^4",Ixx) Iyy=(125*(10**3)/12)+(A1*(15.94**2))+(10*(75**3)/12)+(A2*(26.56**2)) printf("\n Iyy= %0.1f mm^4",Iyy) //Izz=Polar moment of inertia Izz=Ixx+Iyy printf("\n Izz= %0.1f mm^4",Izz)