3D Geometry Class 12 | Chapter 11 Maths One Shot | NCERT Full Concepts | CBSE Board 2025-2026

3D Geometry Class 12 | Chapter 11 Maths One Shot | NCERT Full Concepts | CBSE Board 2025-2026
In this full chapter video, we cover direction cosines, direction ratios, equation of a line, shortest distance between two lines, angle between two lines, and important NCERT numericals in an easy-to-understand way.
Perfect for Class 12 board exam preparation, revision, and last-minute concept clarity.

Teacher's Name : Anurag Chauhan Sir

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Time Stamps :
00:00:00 - Introduction
00:01:10 - 2D Geometry Recap
00:02:35 - 3D Geometry Basics
00:09:04 - Distance Formula
00:13:17 - Direction Ratios & Cosines
00:28:00 - Line Equation (One Point)
01:07:07 - Line Equation (Two Points)
01:36:23 - Angle Between Lines
01:56:55 - Shortest Distance (Skew Lines)
02:26:43 - Shortest Distance (Parallel Lines)
02:32:17 - Intersection of Lines
03:00:08 - Perpendicular & Image of Point
03:19:00 - Line Perpendicular to Two Lines
03:27:12 - Conclusion & Tips


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