Completion

req_001: Assume a mounting plate in millimetres with a rectangular base 120 mm by 80 mm by 10 mm thick, and a vertical reinforcing rib centered on the top face and extending to a total overall height of 50 mm.
req_002: Model the plate as a single connected solid body with the rectangular base and reinforcing rib fused into one part.
req_003: Add four equally spaced mounting through holes on the base, using an assumed hole diameter of 8 mm and a circular pattern radius of 35 mm.