Question 206810
 A square garden has a walkway 3 ft wide around its outer edge. If the area of the entire garden, including the walkway, is 121 ft2, what are the dimensions of the planted area?
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Since it's square, the side is the sqrt of 121, = 11 feet.
The walkway is 3 ft on all sides, so the inside square is 5 ft by 5 ft.