Play with the width and height of the cross-section. Its properties update automatically in the table. In the graphics you can check the variation of Moments of Inertia (I) corresponding to the (y) and (z) axis in relation to the cross section area (A). Keep the width constant and change the height: how do Iy and Iz vary? Why is one curve parabolic and the other a line? If we need to increase Iy with few extra material, what is more efficient: increasing the width or the height?