Question

four thin rods of some mass M and same length l
form a sauare as shown figure moment of
inertia or system about an axis through center
o & perpendicular to it's plane is​

Answer 1

Icom= Ml²/12+Mh²= Ml²/12+Ml²/4=Ml²/3

Icom(total)=4×Ml²/3

I hope this helps ( ╹▽╹ )