UUESTION $1.$

Page $2$

built$-$up section is made by joining a rectangular section, two standard unequal leg angle sections and a tandard channel section as shown in Figure $1.$ Using the section properties given in page $5,$ determine

The vertical position of centroid of the cross section of the built$-$up section $\frac{?}{\text{b}\text{a}\text{r}}(y)$ from the bottom edge.

The second moments of area, $I_{xx}$ and $I_{YY}$ of the cross section where $xx$ and $YY$ pass through the centroid.

$(10)$

Figure $1$: Builtup Section for Question $1.$