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3D Geometry in one weekend

Lines, planes and shortest distance, in the order that makes the most sense.

Karan Mittal Β· B.Tech, IIT Delhi
3 Sept 2026 Β· 8 min read

3D Geometry rewards a clear order: direction ratios, then lines, then planes, then distances. Do it in that order and it fits in a weekend.

xyzChapter3D Geometry
#Vectors & 3D#3D Geometry
Written by
Karan Mittal

Karan bhaiya cracked JEE and studied at IIT Delhi. He has spent his career building learning products and has mentored 1,000+ JEE aspirants along the way. Every Mathflex video is built around the questions that actually show up in the exam.

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