The perimeter of the rectangle is 39 centimeters.
Length 20 meters.
The sum of the width and length, multiplied by two, is the perimeter of the rectangle, and already two lengths should be less than the perimeter.
The perimeter is 39 centimeters, it is less than the length of 20 meters, therefore the quadrilateral cannot have such a length in any way.
Answer: The length is too long for a rectangle.
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