Suppose the strain components of the plane strain triangular plate made of steel (E=200 GPa, v =0.30) at a given point A are given as = 500, & = 250, and = Vxy =-500. (a) Calculate the stress components , ,, and 7, using Hooke's law at A. (15 Points) (b) Compute the two principal stresses at A from , , and 7, using the analytical approach. (15 Points). (c) Verify your results in (b) by drawing a Mohr's circle. Need to mark all necessary points and values.