In an elastic plate with a thickness 10 mm, Young's modulus 70 GPa and Poisson ratio v = 0.3, the stresses have been experimentally measured at a given location on the top surface: 0x = 82 MPa Oy = -13 MPa Txy = 82 MPa Calculate the curvatures K. Ky and Kxy in that point. Assume a pure bending scenario.