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Class 11 Mathematics
Introduction to Three-dimensional Geometry
CBSE · Class 11 · Mathematics · Chapter 11
Introduction to Three-dimensional Geometry
Basics of 3D coordinate geometry.
4 lessons
60 min
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Lessons in this chapter
1
Locating Points in Three-Dimensional Space
Learn how three signed coordinates locate a point, and connect axes, planes, projections and octants.
2
Distance and Relationships Between Points
Derive spatial distance from two right triangles, then use lengths to test collinearity and triangle types.
3
Midpoints, Centroids and Distance-Based Applications
Use coordinate averages and distances to construct figures and translate geometric conditions into equations.
4
Chapter Summary and Practice
Connect spatial position, distance and coordinate averages through a chapter-wide guide and mixed reasoning.
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