Problem $2$: Determine the location $\stackrel{}{x}$ and $\frac{?}{\text{b}\text{a}\text{r}}(y)$ of the centroid of each beam's cross$-$sectional area. Measure $\stackrel{}{x}$ from the lefmost point in the cross$-$section. Measure $\frac{?}{\text{b}\text{a}\text{r}}(y)$ from the bottom of the cross$-$section. For $($a$),$ neglect the size of the corner welds at A and $B.$

$($c$)$