Question $2$

Figure $2$ shows the girder section below has two $25mm$ diameter bolts holes in the bottom flange:

i$.$ Calculate the coordinates $(x,y)$ for the centroid

$(10$ marks$)$

ii$.$ Calculate the Ixx and lyy for the given shape

$(13$ marks$)$

iii. State which axis will give the least bending resistance

$(2$ marks$)$

Figure $2$