In 2013, a man in New Zealand set a record for the deepest dive by a person without equipment. He dove 100 meters below sea level! The deepest dive ever recorded by a bottlenose dolphin is 200 meters lower than this. What is the deepest dive ever recorded by a bottlenose dolphin relative to sea level?

18 meters by 9 meters (or 9 meters by 18 meters)

Step-by-step explanation:

lets say the dimensions are x and y. we have x*y=162, and 2x+2y=54. from the second equation we have x+y=27 so y=27-x. plug this into the first equation to get x(27-x)=162 or -x^2 + 27x = 162. x^2 - 27x + 162 = 0. simplify to get (x-18)(x-9)=0. so x=18 or x=9. when x=18, y=9, when x=9, y=18 so the dimensions are 18 by 9 meters