For the tapered beam shown in Figure below, it shows a section at midway along its length. The web of the beam has a thickness of 2 mm and is fully effective in resisting direct stress. The beam tapers symmetrically about its horizontal centroidal axis and the cross-sectional area of each flange is B [mm] (take from the table) the vertical shear load Fy [N] is also given in the table. 400 mm 2 A F 2m (a) 1m 200 mm Fy [kN] 81 mm 1 $ 2 mm B1 mm Section AA (b) 300 mm