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The figure above represents the floor of a square foyer with [#permalink]
31 Aug 2003, 08:11
The figure above represents the floor of a square foyer with a circular rug partially covering the floor and extending to the outer edges of the floor as shown. What is the area of the foyer that is not covered by the rug?
(1) The area of the foyer is 9 square meters.
(2) The area of the rug is 2.25pi square meters.