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## Homework Statement

A thin, rectangular sheet of metal has a mass M and sides of length a and b. Use the parallel-axis theorem to calculate the moment of inertia of the sheet for an axis that is perpendicular to the plane of the sheet that passes through one corner of the sheet

## Homework Equations

## The Attempt at a Solution

I'm not really sure what axis the problem is saying that the sheet will be rotating around I know the answer is 1/3M(a^2 + b^2) because this is an odd problem in my book, but I'm not sure how to go about it. I know the parallel axis theorem is I = Icm +Md^2