3. The quarter ring shown has a mass m and was cut from a thin, uniform plate. Knowing that = r1 r2, determine the mass moment of inertia of the quarter ring with respect to (a) the axis AA', (b) the centroidal axis CC' that is perpendicular to the plane of the quarter ring. B A' 0 A ₁ C 1₂ C' B¹

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