Introduction to Constructions

A construction is a method to draw shapes, angles, or lines accurately. The constructions that you create use only a compass, straightedge, and a pencil. In this video, you will learn about constructions in geometry. Click the player button to begin.

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Constructing a Line Segment Congruent to a Given Line Segment

Constructing a line segment congruent to a given line segment will require you to use a compass and a straightedge. Your knowledge of circles will prove beneficial as you learn this new skill. In this video, you will learn to construct a line segment that will be congruent to a given line segment. Click the player button to begin.

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Constructing a Perpendicular Bisector of a Line Segment

Again, you will need a compass and straightedge to construct the perpendicular bisector of a line segment. Having knowledge of circles will help you complete this construction. In this video, you will learn how to construct the perpendicular bisector of a line segment with compass and straightedge. Click the player button to begin.

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Constructing a Perpendicular to a Given Line from a Point Not on the Line

You will continue to use a compass and a straightedge to construct a perpendicular through a point not on a given line. Your knowledge of circles will help you complete this type of construction. In this video, you will learn how to create a perpendicular to a given line from a point not on the line by applying your knowledge of creating a perpendicular bisector. Click the player button to begin.

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Constructing a Perpendicular to a Given Line from a Point on the Line

Throughout this topic, you have needed a compass, a straightedge, and knowledge of circles to help you complete constructions. You will need the same equipment and skills to construct a perpendicular to a given line with a point on the line. Your knowledge of constructing a perpendicular bisector will be useful. In this video, you will learn how to construct a perpendicular through a line with a point on the line. Click the player button to begin.

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Constructions Involving Line Segments and Perpendicular Lines Review

Now that you have explored constructions involving line segments and perpendicular lines, review your knowledge in this interactivity. Click the player button to get started.