<PRE><B>Question 163791</B>
A circular pool is 34 feet in diameter and has a flag stone walk around it that is 3 feet wide.  Find the area of the walk.  Express the answer in terms of pie.
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Draw the picture: a circle inside a circle..
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Area of inner circle: pi(17)^2 sq. ft.
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Area of outer circle: pi(20)^2 sq. ft.
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Area of walk = outer area - inner area = [20^2-17^2]pi sq. ft.
= 111*pi sq. ft.
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Cheers,
Stan H.</PRE>