math

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Ted made a scale model of a submarine for his science class.
a. What is the volume of Ted’s model?
b. If 1 inch in the model represents 20 feet in the actual submarine,
what is the volume of the actual submarine?

front round is 3 inch radius/length 3 inch
cylinder is length 12 inch
tail cone is 3 inch radius/length of 4 inches.

Need help with the secon part. Not sure is I explained it correctly the first time. I think I may have the first part incorrect.

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