Chapter 11

Introduction to Three-Dimensional Geometry

Read the ideas in context, then work through short guided lessons that meet you at your current level.

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How to study this:The engine: retrieval and spacing

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Sections

Work through it section by section

Open any section. You read the idea first, then answer questions on it — and you can start wherever you like.

Not startedIn progressMasteredPaused

1. Locating a point in space — one more axisNot started

2. The coordinate axes and octantsNot started

3. Naming a point by three coordinates2 ideasNot started

4. The distance between two points in space2 ideasNot started

5. Distance from the originNot started

6. Dividing a segment — the section formula3 ideasNot started

7. Dividing a segment — external division2 ideasNot started

8. One more axis, the same toolsNot started

9. Two traps this chapter sets2 ideasNot started

10. Practice set3 ideasNot started

11. Chapter-end problemsNot started

12. JEE-application problemsNot started