The area moment of inertia of a semi-circular region having diameter 'd' about its diametric axis isA$\pi d^4/128$B$\pi d^2/256$C$\pi d^4/64$D$\pi d^2/36$Answer: A. $\pi d^4/128$ Read Explanation: The area moment of inertia of a semi-circular region having diameter 'd' about its diametric axis is πd4/128\pi d^4/128πd4/128 Read more in App