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 Homework Statement

Let I be the moment of inertia of a uniform square plate about an axis AB that passes through its centre and is parallel to two of its sides.CD is a line in the plane that passes through the centre of the plate and makes an angle θ with the axis AB as shown in figure. The moment of inertia
of the plate about the axis CD is equal to
 Homework Equations
 I[SUB]z[/SUB]= I[SUB]x[/SUB] + I[SUB]y[/SUB](Perpendicular Axis theorem)
 I thought about solving it using components of I_{AB} but since it is a scalar quantity it doesn't seems to be correct .
 I don't think Perpendicular Axis theorem will work as required Inertia is in the same plane.
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