Honestly I don't know what to do at this point please help

Joe is working at the storage yard. It is 50 yards from the entrance (V) to the checkpoint (W). From there, it is 40 yards to the guard post (X). From his spot at the guard post, Joe notices a barrel tipped over 12 yards away (Z). The spill stretches to the fence (Y). If AXYZ is similar to AXVW, what is the distance d across the chemical spill? * zd Y 12 yd X 40 yd 50 yd W​

Honestly I dont know what to do at this point please helpJoe is working at the storage yard It is 50 yards from the entrance V to the checkpoint W From there it class=