The moment of inertia of a semicircular ring about an axis, passing through the center and perpendicular to the plane of ring, is 1/x MR^2, where R…

The moment of inertia of a semicircular ring about an axis, passing through the center and perpendicular to the plane of ring, is $\displaystyle \frac{1}{x} \mathrm{MR}^2$, where R is the radius and $\displaystyle M$ is the mass of the semicircular ring. The value of $\displaystyle x$ will be $\displaystyle \_\_\_\_$.