You can put this solution on YOUR website! How do I find the Area of a perimeter that is 9 feet by 11 Feet I am in the 5th grade
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I think you describing the dimensions of a rectangle.
If that is true, use the formula Area = (width)(length)
Since your dimensions are 9 ft and 11 feet you should get:
Area = (9 ft)(11 ft) = 99 square feet
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Cheers,
Stan H.
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