Which step in the construction of copying a line segment ensures that the new line segment has the same length as the original line segment?

Well once you draw a line with a ruler you take your compass and make sure the sharp part of the compass and the pencil part are touching both points of the original line segment , then you want to take that to the line you created and make a small arc (dont change the compass size) but you can shorten my answer and use this, i just studied this last week

The answer that i got was 8/3

With a continuous thought process.