Determine the position of the centre of gravity (c.g.) and 2nd moment of inertia with respect to c.g. of the section shown below, where A = 6 mm and B 4 mm. X B a) Calculate the X = b) y A B mm with respect to the point O. Calculate the y = mm with respect to the point O. c) Calculate Ixx with respect to the centroidal axis. lxx mm4