Answer:
hello! i can answer in the comments if you tell me what the lengs are and where they are located! i cannot see the picture due to my school computer blocking images on the site so that's why i need the explanation. thanks :>
It depends on how deep the submarine is... do you happen to know that?
The length of the plastIc rap needeD would be 19 cm. Kish
60 because you Multiply all the numbers and get your answer