Setting angle mates in an assembly to find mass center


The following two images are part of an assembly modeling practice question. I attempted the question and a link to the assembly I made is Assembly question solidworks.SLDASM - Google Drive. I think I have assigned all mates except the angle mates correctly, which causes my model to look completely different from that shown in the images below. I added the angle mates as shown in the images based on the coordinate system 1 that I added to match the coordinate system shown in the drawing views. Can anyone let me know what I am doing wrong? Do the drawing views provided in the question which I have attached below fully define the assembly? I am grateful for any suggestions.