Current Attempt in Progress

Two thin rods $($each of mass $0\mathrm{.}40$ kg $)$ are joined together to form a rigid body as shown in the figure. One of the rods has length $L_1=0\mathrm{.}30$ m $,$ and the other has length $L_2=0\mathrm{.}50m.$ What is the rotational inertia of this rigid body about $($a$)$ an axis that is perpendicular to the plane of the paper and passes through the center of the shorter rod and $($b$)$ an axis that is perpendicular to the plane of the paper and passes through the center of the longer rod?

$($a$)$ Number

Units

$($b$)$ Number Units