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Problem-Solving Strategies: Make A Model

 

 

Solve the following problem by making a model.

 

 

A circular fountain has a diameter of 9 feet. A 3-foot wide flower garden (in the shape of a square) surrounds the fountain. A circular sidewalk encircles the garden. If the sidewalk is 2 feet wide, find the total area of the fountain, garden, and sidewalk.