An angle section with equal legs is subjected to a bending moment M having its vector directed

Question:

An angle section with equal legs is subjected to a bending moment M having its vector directed along the 1-1 axis, as shown in the figure.
Determine the orientation of the neutral axis and calculate the maximum tensile stress σt and maximum compressive stress σc if the section is an L 152 x 152 x 12.7 section and M = 2.5 kN m.