Find the principal moments of inertia about the center of mass of a flat rigid body in the shape of a 45 degree right triangle with uniform mass density. What are the principal axes?

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Moments

There are various practical applications of the concept of moments, like a rotation of the crank due to linear motion of the piston, the moment of inertia and its use in designing beams and columns, bending moment concept, torque, twisting moment, etc.