11.3 An aluminum strut has a cross section referred to as a deep hat (Figure 11.3). Find the vertical distance from the top of the strut (as shown) to the centroid of its area. Each segment has a thickness of 10 mm. (6 Marks) Note: The shape can be simplified by assuming all of the corners are square, and by noting the symmetry of the strut. 30 mm- 100 mm y 80 mm Figure 11.3