Ch 12: Lines and Angles in Geometry

About This Chapter

This chapter uses videos developed by our expert instructors to teach students about lines and angles in geometry. You can use the quizzes associated with each lesson to ascertain whether or not you understand the math concepts being presented.

Lines and Angles in Geometry - Chapter Summary and Learning Objectives

Parallel and perpendicular lines, as well as angles, all follow exact geometric principles. Our instructors provide video lessons that are around 5 minutes long to guide you through focused segments of geometric angle concepts to ensure you can make sense of lines and angles in geometry. We provide tools to enhance your user experience, such as video transcripts and the ability to ask the instructor a question. The lessons help you understand the following:

  • Parallel, perpendicular and transverse lines
  • Line segments and rays
  • Different types of angles

Video Objective
Line Segments & Rays: Definition & Measurement Discover the difference between a line segment and a ray.
Types of Angles: Right, Straight, Acute & Obtuse Summarize information about the right, acute and obtuse angle and also the straight line.
Complementary, Supplementary, Vertical & Adjacent Angles Recall what angles add up to 90 degrees and angles that add up to 180 degrees.
Types of Angles: Vertical, Corresponding, Alternate Interior & Others Discuss angles beyond the most basic angle types.
Parallel, Perpendicular and Transverse Lines Demonstrate the differences between parallel, perpendicular and transverse lines

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

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.