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clear
// The built-up section is divided into six simple rectangles
//variable declaration
A1=250.0*10.0 //Area of 1,mm^2
A2=40.0*10.0 //Area of 2,mm^2
A=A1*2+A2*4 //Total area,mm^2
Y1=5.0
Y2=30.0
Y3=15.0
Y4=255.0
Y5=135.0
yc=(A1*Y1+2*A2*Y2+A2*Y3+A2*Y4+A1*Y5)/A
//Now, Moment of inertia about the centroidalaxis=Sum of the moment of inertia of the individual rectangles
Ixx=(250.0*(10**3)/12.0)+(A1*((yc-5)**2))+((10.0*(40**3.0)/12.0)+(A2*((yc-30.0)**2)))*2+(40*(10**3)/12.0)+(A2*((yc-15.0)**2))+(10.0*(250.0**3.0)/12.0)+(A1*((yc-135.0)**2))+(40.0*(10.0**3)/12)+(A2*((yc-255)**2))
printf("\n Ixx= %0.1f mm^4",Ixx)
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