4.2.4968912
Determine the Second Moment of Area for the composite area shown in Figure 4.2b with respect to x1-axis (Ix1x1) in × 106 mm4.
Given B = 180 mm, D =250 mm, tf = 15 mm mm and tw = 30 mm.
To remind you, find the second moment of area, not inertia. Make sure your answer is in × 106 mm4.