Question

which basic construction is shown here? a bisect a line segment b construct a parallel line c construct a perpendicular line d construct a perpendicular bisector

Explanation:

When constructing a parallel line, we use the property of congruent angles (in this case, the arcs mark equal - measure angles which are used to ensure the lines are parallel). A line segment bisector (either regular or perpendicular) would involve working with a single line segment. A perpendicular line construction would focus on creating a 90 - degree angle. Here, the arcs are used to copy an angle to create a parallel line.

Answer:

B. construct a parallel line