A submarine is searching for underwater features. It is accompanied by a small aircraft and an underwater robotic vehicle. At one time the aircraft is 200 m above the surface, the submarine is 55 m below the surface, and the underwater robotic vehicle is 227 m below the surface.
1. What is the difference in height between the submarine and the aircraft?
2. What is the distance between the underwater robotic vehicle and the submarine?
Help :')
please and thank you