The semicircle shown has a moment of inertia about the x axis of 40.0 ft4 and a moment of inertia about the y axis of 40.0 ft4. What is the polar moment of inertia about point C (the centroid)?

Inertia can be termed as a resistance offered by a body to change its state. A rigid body initially at rest will apply resistance when acted by an external force that tends to change its state of rest or velocity, or a body initially at motion will provi…