Calculus help!

Question

Calculus help!

arianna1453 · Answer

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whpalmer4 · Answer

The problem doesn't exactly specify whether this enclosure needs 3 or 4 sides :-(

Depending on why you are fencing it, you may or may not need to fence the side that is bordered by the river.  

Do you want to do 3 sides, or 4 sides?

arianna1453 · Answer

3 sides. since there is the river.

arianna1453 · Answer

well no. enlcosing means all sides. so 4 sides. @whpalmer4

anonymous · Answer

You should use three sides.  Otherwise the fact that the river is there is totally irrelevant.

arianna1453 · Answer

okay then 3 it is

whpalmer4 · Answer

Agreed with that reasoning, but still sticking by my guns that the problem is not well-written :-)

So, if we go with 3 sides, rectangular, can you write an expression for the perimeter in terms of length and width, and an expression for the area enclosed?