Mechanics of Materials - Review of centroid and area moment of inertia 

It is 190 from the bottom.

Oh okay I see now thank you.

It's 325 from bottom

Where did I go wrong? This is straight from the textbook

nah this is right bud. Give it another go

How ?? This is correct.

@@chengyoujiang6076 no

@@aymenelmoubarik6332 So what should be correct answer then? Write down the process and link share the photo to me please (if possible)

no, 140.909mm is correct, you are wrong