Question: A rectangular swim- ming pool that is 25 feet by 50 feet has a 6-foot-wide sidewalk around it. (a) How much fencing would be needed

A rectangular swim- ming pool that is 25 feet by 50 feet has a 6-foot-wide sidewalk around it. 

(a) How much fencing would be needed to enclose the sidewalk? 

(b) Find the area of the sidewalk.

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