SOLUTION: how many square feet of concrete surface are there in a circular walkway 8ft wide surrounding a tree if the tree has a diameter of 3ft.

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Question 1122452: how many square feet of concrete surface are there in a circular walkway 8ft wide surrounding a tree if the tree has a diameter of 3ft.
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
The area is the area of the larger circle minus the area of the smaller circle


 -  =  =  square feet.


Use your calculator.


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