Where does the ##Y_{C}## measurement go in this I section?

[Benjamin_harsh]

Homework Statement

calculate the moment of inertia of this I section about centriodal
axis ($Y_{C}$ = 108.4)

Relevant Equations

$Y_{C}$ = 108.4

calculate the moment of inertia of this I section about centriodal axis ($Y_{c}$ = 108.4)

Where does $Y_{C}$ measurement goes in this I section?

 

[Benjamin_harsh]

calculate the moment of inertia of this I section about centriodal axis ($Y_{C}$= 108.4)

We can see d values at X axis is taken as 0.

How $X_{C} = 0$ in this diagram?

 

[haruspex]

calculate the moment of inertia of this I section about centriodal axis ($Y_{C}$= 108.4)

View attachment 245324

View attachment 245325

We can see d values at X axis is taken as 0.

How $X_{C} = 0$ in this diagram?

The diagram does not supply the relative x displacements of the three shapes. It looks as though you are meant to take them as all having their centres on the Y axis, despite appearances.