A square plate lies in the xy plane with...

A square plate lies in the xy plane with its centre at the origin and its edges parallel to the x and y axes. Its moments of inertia about the x, y and z axes are `I_(x), I_(y)` and `I_(Z)` respectively, and about a diagonal it is `I_(D)`

`I_(x)=I_(y)=(1)/(2)I_(z)`

`I_(x)=I_(y)=2I_(z)`

`I_(D)+I_(X)`

`I_(D)=I_(z)`

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a, c

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