QUESTION $1$

Let $a=12\mathrm{.}6in.$

Type the unit, iiii, after typing the numerical answer $($Blackboard will not accept $"$in$^4"$ but will accept "iiii"$).$

$6$b$.$ Determine the moment of inertia of the cross$-$hatched region about the $y$ axis.

$1$ in$.x$ in$.$ squares