Which of the following is not a correct unit of perimeter?

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Kilometers $(k m)$

Liters ( $l$ )

Centimeters $(c m)$

Meters $(m)$

answer is D.

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Detailed Solution

The perimeter is a closed path that surrounds, or outlines, either a one-dimensional length or a two-dimensional shape. The perimeter of any shape or figure is a measure of only one-dimensional distance, representing the length of the total boundary.
Thus, the units of the perimeter will be one-dimensional (with a degree - 1) and will be one of the units of measuring distance.
Thus, the incorrect unit of the perimeter will be option (D) Litres, as it is a measure of volume/capacity.

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