Oil Spill

Question #1~ I don't think my answer is exactly correct because I either could have rounded my answer or left it how the decimal was. I chose to keep it the way it was, but maybe It wasn't right to round my answer. My answer is accurate but it might be 1 or 2 off. I expect my answer to be right on perfect but it might be a little under if I rounded the numbers.

Question #2~ I think my answer is either perfect or a little under the exact measurement because the polygons maybe should have been rounded when I was adding them together but maybe I was supposed to keep them like they were. I think I measured them correctly because I did the exact formula on every one.  

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