The DAB structure, of negligible mass, supports a load of 400 kg. The structure is in the horizontal plane 0:: and it is xed to the wall by a three-dimensional hinge at point D. The structure is kept in balance in the position indicated by three cables AC, BD and BE as shown in the gure Calculate: a) The tension in the cables AC, BD and BE; b] The components of the force exerted by the hinge on the structure