# Chapter 8: Geometry

**Basic**Created by: CK-12

## Introduction

In Math 7, the learning content is divided into Concepts. Each Concept is complete and whole providing focused learning on an indicated objective. Theme-based Concepts provide students with experiences that integrate the content of each Concept. Students are given opportunities to practice the skills of each Concept through real-world situations, examples, guided practice and independent practice sections. There are also video links provided to give students an audio/visual way of connecting with the content. In this Chapter, students will engage with Concepts on classifying angles, identifying angles, angle measures, complementary angles, supplementary angles, vertical angles, adjacent angles, parallel lines, perpendicular lines, intersecting lines, corresponding angles, triangles, congruent figures, similar figures, indirect measurement, symmetry and transformations.

## Chapter Outline

- 8.1. Angle Classification
- 8.2. Angle Pairs
- 8.3. Supplementary and Complementary Angle Pairs
- 8.4. Vertical Angles
- 8.5. Parallel and Perpendicular Lines
- 8.6. Corresponding Angles
- 8.7. Triangle Sum Theorem
- 8.8. Triangle Classification
- 8.9. Quadrilateral Classification
- 8.10. Polygon Classification
- 8.11. Regular and Irregular Polygons
- 8.12. Congruent Figures
- 8.13. Similarity
- 8.14. Scale Factor of Similar Polygons
- 8.15. Unknown Measures of Similar Figures
- 8.16. Rigid Transformations
- 8.17. Lines of Symmetry
- 8.18. Transformation Classification
- 8.19. Translations, Rotations, and Reflections

### Chapter Summary

## Summary

Having completed this chapter, students are now ready to move on to the next Chapter. Each Concept has provided students with an opportunity to engage and practice skills in many Concepts including classifying angles, identifying angles, angle measures, complementary angles, supplementary angles, vertical angles, adjacent angles, parallel lines, perpendicular lines, intersecting lines, corresponding angles, triangles, congruent figures, similar figures, indirect measurement, symmetry and transformations.