A square lamina is as shown in figure. The moment of inertia of the frame about the three axes shown in figure are $I_1, I_2$ and $I_3$ respectively. Select the correct alternative.

$ABC$ is a right angled triangular plate of uniform thickness. The sides are such that $AB>BC$ as shown in figure. $I_1, I_2$ and $I_3$ are moments of inertia about $AB, BC$ and $AC$ respectively. Then, which of the following relation is correct?

A square is made by joining four rods each of mass $M$ and length $L.$ Its moment of inertia about an axis $PQ,$ in its plane and passing through one of its corner is

From a uniform square plate of side $a$ and mass $m,$ a square portion $DEFG$ of side $\frac{a}{2}$ is removed. Then, the moment of inertia of remaining portion about the axis $AB$ is