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Geometric constructions involve drawing geometric shapes that satisfy certain requirements using a straight-edge and a pair of compasses.

Related Topics: More Geometry Lessons

The tools to use are a ruler (or straight-edge) and a pair of compasses.

A few points to remember when doing the types of geometric constructions covered in these lessons:

- Do not use a protractor
- Use a sharp pencil
- Do not erase the construction lines. (They will show the examiner how the lines or shapes were constructed)

These lessons and videos on Geometric Construction will include the following topics:

This video shows how to copy a line segment using a compass and straight-edge.

This video shows how to copy an angle using a compass and straight-edge.

This video shows how to construct perpendicular bisectors.

This video shows how to use a compass and straightedge to construct a perpendicular to a given line through a point not on that line.

This video shows how to use a compass and straightedge to construct an angle bisector.

This video shows how to a compass and straightedge to construct a line parallel to a given line through a given point not on that line using corresponding angles.

This video shows how to contruct parallel lines using congruent alternate interior angles given the following information: a given line and a point not on that given line.