About This Chapter
Geometry Topics - Chapter Summary
Study properties of geometric shapes and the methods used to measure their dimensions with the video lessons included in this chapter. Instructors cover the following topics to help you prepare for these types of questions on the GED mathematical reasoning exam:
- Points, lines, angles and degrees
- Vertical, corresponding, exterior and interior angles
- Parallel, perpendicular and transverse lines
- Properties of rectangles, squares and rhombuses
- Perimeter and area of triangles
- Surface area and volume of three-dimensional figures
- Area and circumference of circles
This geometry chapter features video lessons taught by experienced instructors who walk you through each topic's key terms and problem-solving steps with the aid of graphical illustrations and sample problems. Additional resources include lesson transcripts and multiple-choice quizzes you can take as many times as you need to assess your understanding of lesson content and create a study plan.
Geometry Topics - Chapter Objectives
You probably know some of the basics associated with geometric shapes, but this chapter will address some more complex topics that you'll need to be familiar with to answer questions in the math GED exam's quantitative problem solving content domain. These types of questions make up around 45% of the exam and require you to find measurements for a shape's unknown angles or sides, identify similar triangles and calculate a figure's perimeter, area, circumference and volume.
Questions on the mathematical reasoning exam consist of multiple-choice, hot spot, fill-in-the-blank and matching questions, and you'll be given 90 minutes to complete them. Minimum scores of 150 on this and the other three test sections are needed to pass the test, which is used to assess the academic skills of applicants for a high school equivalency diploma.
1. 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.
2. Overview of the Basic Shapes in Geometry
Watch this video lesson to learn about some basic shapes in geometry. These are the shapes that you will come across most often in math. Watch as triangles, rectangles, pentagons, and circles come by.
3. Vertical Angles & Complementary Angles: Definition & Examples
Special angles make your life easier. Learn how you can use the properties of special angles to help you find the measurements of missing angles in this video lesson.
4. Overview of Three-dimensional Shapes in Geometry
We are surrounded by three-dimensional shapes. Watch this video lesson to see what some three-dimensional shapes look like, such as a cube, a sphere, a brick, and a cylinder.
5. How to Find Surface Area of a Cube and a Rectangular Prism
After watching this video lesson, you will be able to use the formula for the surface area of a rectangular prism. You will know what measurements you need to use it and how you can apply it to a cube as well.
6. How to Find Surface Area of a Cylinder
Watch this video lesson to learn the formula you can use to find the surface area of a cylinder. Learn the measurements that you'll need as well as how to use them.
7. How to Find Surface Area of a Pyramid
In this video lesson, we will learn how to take any pyramid, whether it's a pyramid in Egypt or a little toy pyramid, and calculate how much paint we will need to paint it. Learn the formula and what is behind it.
8. Combined Figures: Perimeter, Area, and Volume
Watch this video lesson to learn how you can break up the shapes in a combined figure to easily find the perimeter, area, and volume of the whole figure.
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Other chapters within the Basic Geometry: Help & Review course
- Introduction to Basic Geometry
- Basic Geometry: Lines & Angles
- Basic Geometry: Polygons
- Basic Geometry: Triangles
- Basic Geometry: Quadrilaterals
- Basic Geometry: Circles
- Basic Geometric Constructions
- Basic Geometry: Similar Figures
- Basic Geometry: Perimeter, Circumference & Area
- Basic Geometry: 3-Dimensional Figures
- Lines and Angles in Geometry
- Perimeter, Area & Volume
- Geometric Properties of Objects
- Geometric Graphing Basics
- Geometric Graphing Functions