A box of Toblerone of mass M, whose two ends are equilateral triangles parallel to the xy plane with side 2a, is centered on the origin with its axis...

A box of Toblerone of mass M, whose two ends are equilateral triangles parallel to the xy plane with side 2a, is centered on the origin with its axis along the z axis. Find its moment of inertia for rotation about the z axis. Without doing any integrals write down and explain its two products of inertia for rotation about the z axis.