A uniform thin bar of mass 6 m and lengt...

A uniform thin bar of mass `6 m` and length `12 L` is bend to make a regular hexagon. Its moment of inertia about an axis passing through the centre of mass and perpendicular to the plane of the hexagon is :

`20mL^(2)`

`6mL^(2)`

`12/5mL^(2)`

`30mL^(2)`

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