P.12.2 (60 points) Idealize the box section shown in the figure below into an arrangement of direct stress carrying booms and shear stress only carrying panels suitable for resisting bending moments in a vertical plane. The thickness is constant and equal to 2 mm. Sketch the idealized section. 140 mm 260 mm + Angle 50 x 40 x 10 mm 20 x 20 mm 20 x 30 mm 20 x 40 mm 160 mm