WeBWorK Standalone Renderer

The moment of inertia of a disk about the z-axis passing through $G$ is $0.5$ $\displaystyle{mr^{2}}$ . What is its moment of inertia about the z-axis passing through point $A$ on its rim?

A. $mr^2$
B. $1.5 mr^2$
C. $-0.5 mr^2$
D. $-mr^2$
E. None of the above