Answer: You could use the construction tool or a compass and straightedge to create a line segment that is twice as long by placing the center of your compass on point then adjusting the compass width to AB's length. Next, place the compass's center on B and draw an arc without changing the compass's width. After that, draw a line from Point A to the arc with your straightedge, this new line segment should now be twice as long as the previous one.
Explanation:
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