Extracted text: Plane Stress in the stress element piven in fipure, with mohr circle; Piven a) Detesmine the principal stress directions by calculati ng the principal stress values. b) Calculate the larpest and smallest shear stresses and determine their directions. T=140 kg/cm? %3D 6x = 700 kg/cm² 700 leg/emi %3D %3D 7T=440kg/cm2 %3D (M)