The perimeter is the length around the outside of a shape, or the total of all the lengths of its sides. A shape that consists only of a line is simple: it has two sides, both of which are exactly the same length (from one end to the other and back along the other side of the line). Just measure the line, then double it. That is the perimeter.
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Line
The perimeter.
border
perimeter Dr. satish
Well the perimeter is the straight line across the middle of the shape I would describe is a single parallel line to be my opinion