# Ch 30: 8th Grade Math: Introduction to Geometric Figures

### About This Chapter

## 8th Grade Math: Introduction to Geometric Figures - Chapter Summary

Your eighth grader can use the straightforward and brief videos found in this chapter to bolster their knowledge of angles and line segments. Students will receive instruction on angle types and line bisection, as well as be able to practice constructing geometric figures. The available quizzes and worksheets can be accessed at any point during the lesson, to test student knowledge or practice concepts.

## Chapter Lessons and Objectives

Lesson | Objective |
---|---|

Line Segments & Rays: Definition & Measurement | Instructors provide the definition of line segments and introduce the segment addition postulate. |

Points, Lines & Angles in Geometry | This lesson covers fundamental geometry-related vocabulary. |

Make Geometric Constructions with Tools | At the end of this lesson, students should be able to employ tools like compasses and paper to create a variety of geometric shapes. |

Practice Making Geometric Constructions with Tools | Students use the knowledge gained in the previous lesson to produce constructs. |

Geometric Constructions Using Lines and Angles | Students learn how to make shapes using line segments and angles. |

Line Segment Bisection & Midpoint Theorem: Geometric Construction | This lesson shows how to find line segment midpoints and bisect the line based on that point. |

Dividing Line Segments into Equal Parts: Geometric Construction | Instructors show how to partition line segments into any given number of equal parts. |

Types of Angles: Vertical, Corresponding, Alternate Interior & Others | With this lesson, students will be armed with definitions for a variety of angles. |

Measuring Complementary, Supplementary, Vertical, and Adjacent Angles | Students review the definitions of angles and learn how to properly measure them. |

Constructing an Angle Bisector in Geometry | This lesson presents how to make an angle bisector using a compass and straightedge. |

Constructing Equilateral Triangles, Squares, and Regular Hexagons Inscribed in Circles | After this lesson, students will be able to create basic geometric shapes on their own. |

### 1. Line Segments & Rays: Definition & Measurement

Watch this video lesson to learn the difference between a line segment and a ray. You will also learn how to measure and add line segments. Learn why you can't measure or add a ray.

### 2. Points, Lines & Angles in Geometry

After watching this video lesson, you should understand the basic terms that form the foundation of geometry. Learn what a point is, what a line is, what an angle is, and learn about a special type of angle called a right angle.

### 3. Geometric Constructions Using Lines and Angles

Watch this video lesson to learn about geometric construction and how you can copy line segments and angles without using any numbers. All you need is a straight edge and a compass.

### 4. Line Segment Bisection & Midpoint Theorem: Geometric Construction

Watch this video lesson and you will learn how to bisect a line segment without measurements using just a compass and a straight edge. You'll also learn about the midpoint theorem, which lets you calculate the midpoint if you have the measurements.

### 5. Dividing Line Segments into Equal Parts: Geometric Construction

Watch this video lesson to learn one way to easily divide any line segment into as many equal parts as you need. Also, learn where in real life this skill comes in handy.

### 6. Types of Angles: Vertical, Corresponding, Alternate Interior & Others

In addition to basic right, acute, or obtuse angles, there are many other types of angles or angle relationships. In this lesson, we will learn to identify these angle relationships and discuss their measurements.

### 7. Constructing an Angle Bisector in Geometry

Watch this video lesson to learn a cool way to split an angle in half. You can use this method to split a pie slice in half where you can be sure each side is equal.

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### Other Chapters

Other chapters within the 8th Grade Math: Practice & Review course

- 8th Grade Math: Basic Arithmetic Operations
- 8th Grade Math: Divisibility
- 8th Grade Math: Number Properties
- 8th Grade Math: Number Theory
- 8th Grade Math: Factoring
- 8th Grade Math: Estimation and Rounding
- 8th Grade Math: Whole Numbers
- 8th Grade Math: Simplifying Whole Number Expressions
- 8th Grade Math: Negative Numbers
- 8th Grade Math: Absolute Value
- 8th Grade Math: Integers
- 8th Grade Math: Rational Numbers
- 8th Grade Math: Inequalities
- 8th Grade Math: Introduction to Decimals
- 8th Grade Math: Operations with Decimals
- 8th Grade Math: Introduction to Fractions
- 8th Grade Math: Operations with Fractions
- 8th Grade Math: Percents
- 8th Grade Math: Exponents & Exponential Expressions
- 8th Grade Math: Roots & Radical Expressions
- 8th Grade Math: Basic Algebraic Expressions
- 8th Grade Math: Algebraic Distribution
- 8th Grade Math: Simplifying & Solving Rational Expressions
- 8th Grade Math: The Coordinate Graph
- 8th Grade Math: Linear Equations
- 8th Grade Math: Systems of Linear Equations
- 8th Grade Math: Properties of Functions
- 8th Grade Math: Graphing Functions
- 8th Grade Math: Solving Math Word Problems
- 8th Grade Math: Triangles in Geometry
- 8th Grade Math: Quadrilaterals in Geometry
- 8th Grade Math: Circles in Geometry
- 8th Grade Math: Circular Arcs & Measurement in Geometry
- 8th Grade Math: Polyhedrons and Geometric Solids
- 8th Grade Math: Symmetry, Similarity & Congruence in Geometry
- 8th Grade Math: Triangle Theorems and Proofs in Geometry
- 8th Grade Math: Similar Polygons in Geometry
- 8th Grade Math: The Pythagorean Theorem in Geometry
- 8th Grade Math: Units of Measurement
- 8th Grade Math: Measuring Perimeter & Area
- 8th Grade Math: Data & Graphs
- 8th Grade Math: Probability
- 8th Grade Math: Statistics
- 8th Grade Math: Rates, Ratios & Proportions
- 8th Grade Math: Consumer Math
- 8th Grade Math: Number Sequences
- 8th Grade Math: Sets & Subsets
- 8th Grade Math: Algebraic Monomials & Polynomials