Extracted text: Question 1 The biaxial stress element of an isotropic and homogenous material is loaded as shown in figure 1 below. Y Oxz =185 MPa Ty = 3D 60 MPа 25° o =180 MPa yz Figure 1 (a) Determine the magnitudes, and senses of the direct and shear stresses which act on the inclined plane as shown in figure 1 using the First Principle method. (b) Using the standard formulae, determine for the element of stressed, homogeneous, isotropic material, shown in figure 1, the following: (i) The magnitudes of principal stresses and their associated planes relative to the x-axis for positive angles. The magnitudes of maximum shear stresses and their associated planes relative to the x-axis for positive angles. Magnitudes of direct and shear stresses acting on the inclined plane. (ii) (ii)