Ch 3: High School Geometry: Introduction to Geometric Figures

Watch geometry video lessons and learn geometric constructions, various types of angles and more. These video lessons are short and engaging and make learning easy!

Introduction to Geometric Figures - Chapter Summary and Learning Objectives

You can build a solid foundation of geometric knowledge with these introductory lessons. Become familiar with the essential basic terms and concepts while making geometric constructions with a variety of tools. Learn about the various types of lines and angles as you delve deeper into the world of geometry. This chapter can help you understand the following:

• Measurement of line segments
• Geometric constructions using various tools and methods
• Copying of line segments and angles
• Line segment bisections
• Parallel, perpendicular and transversal lines
• Construction of lines
• Types of angles: vertical, corresponding, alternate interior, alternate exterior and consecutive interior
• Angle bisectors
• Construction of squares, equilateral triangles and regular hexagons inscribed in circles

Video Objective
Line Segments and Rays Define line segment and ray. Explain how to measure the distance of a line segment as well as how to find the length of a segment that is made up of other segments. Become familiar with the Segment Addition Postulate.
Points, Lines, and Angles in Geometry Define basic vocabulary surrounding geometry: point, types of lines, degrees and right angle.
Make Geometric Constructions with Tools Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.).
Practice Making Geometric Constructions with Tools Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.).
Geometric Constructions Using Lines and Angles Define geometric construction. Demonstrate how to use construction to copy a line segment and then do the same for an angle.
Line Segment Bisection and Midpoint Postulate Demonstrate how to use construction to bisect a segment. Show midpoint of a given line segment.
Parallel, Perpendicular and Transverse Lines Learn the definitions of parallel, perpendicular, and transversal lines.
Constructing Perpendicular Lines Demonstrate how to construct perpendicular lines. Construct a line perpendicular to a given line passing through a given point not on that line.
Types of Angles: Vertical, Corresponding, Alternate Interior and Others Learn the definitions of vertical, corresponding, alternate interior, alternate exterior and consecutive interior angles.
Constructing an Angle Bisector Define an angle bisector. Demonstrate how to construct an angle bisector by using a compass and straightedge to bisect an angle.
Constructing Equilateral Triangles, Squares, and Regular Hexagons Inscribed in Circles Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.

11 Lessons in Chapter 3: High School Geometry: Introduction to Geometric Figures
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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