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**1. Homework Statement**

A curcial part of a piece of machinery starts as a flat uniform cylindrical disk of radius R0 and mass M. It then has a circular hole of radius R1 drilled into it. The hole's center is a distance h from the center of the disk. Find the moment of inertia of this disk (with off-center hole) when rotated about its center, C.

Hint: Consider a solid disk and subtract the hole; use parallel-axis theorem.

**2. Homework Equations**

L=IA

**3. The Attempt at a Solution**

I spent hours on paper with no end, google "chicken scratch" for proof.