The rigid beam shown in Figure AN- 12 is suspended by three cables. The beam is horizontal prior to being connected to the cables and is to remain horizontal after being attached to the cables. The beam weighs 176.4 kN. 0.6 m Bronze A=900 mm E-83 GPa Steel A-600 mm E - 200 GPa Steel A 600 mm E=200 GPa 10 m Figure AN-12 Which of the following most nearly gives the elongation of steel cables in mm? O 0.482 O0.936 O 0.615 00.245