Answer: A line has one dimension because it is made up of a figure with no thiknes that extends infinitely in both directions.
Explanation:
A line is a one-dimensional figure, it has no thickness.
For reference, point is zero dimesional, a plane is twodimensional.
Then the correct answer would be:
A line has one dimension because it is made up of a figure with no thiknes that extends infinitely in both directions.