please use Tables C$\mathrm{.}1$ and D$\mathrm{.}1$ in Appendices C and D$,$ respectively, of the required course textbook, or from their source $($AISC Manual of Steel Construction, $15$th edition$).$ Other sources may use slightly different values, which could result in your answers being graded as incorrect.

A built$-$up steel member is composed of four L$6$ xx$4$xx$3//8$ steel angles welded to a web plate, as shown in the figure below. The plate has a width of b$=7//16$

in and a height of h$=20$in$.$ Calculate the moment of inertia about the centroidal x$-$axis. $($The centroid of the cross$-$section can be found by using symmetry$-$

remember that when an area has two or more lines of symmetry, the centroid will be located at their intersection.$)$ Enter the value of I$\_($x$)$ in in$^(4),$ rounded to the

nearest whole number.

Answer: