Please watch: "Tallest Building in the World( top ten tallest buildings in the world )" https://www.youtube.com/watch?v=7UfGLPTjyUU --~-- Welcome to my forum specially for civil and mechanical engineering students with complete lectures on courses of mechanics of solids,Structural analysis, reinforced concrete design and steel structures (in process yet). Derivation of moment of inertia of Rectangle Derivation of moment of inertia of Rectangle by integration Derivation of moment of inertia of Rectangle by integration Derivation of second moment of area of rectangle