Coordinate Geometry Class 9 | Revision + 10 Short Tricks in 12 Min | CBSE 2026-27

Revise the complete Class 9 Maths Chapter 1 – Orienting Yourself: The Use of Coordinates (NCERT Ganita Manjari) in just 12 minutes, as per the latest CBSE syllabus 2026-27. Clear whiteboard explanations, points plotted on graph paper, solved NCERT examples, and 10 verified short tricks to solve questions fast. In this video: ✅ A short history of coordinates – from Sindhu-Sarasvati city grids to Descartes ✅ Mapping a room using coordinates ✅ The coordinate plane: axes, origin, abscissa, ordinate ✅ Quadrants and signs, points on the axes ✅ Mirror images (reflection in the x-axis and y-axis) ✅ Distance formula with Pythagorean-triple shortcuts ✅ Midpoint and trisection points ✅ Collinear points, right triangles, squares and circles ✅ 10 short tricks + common mistakes + quick quiz ⏱️ Chapters 0:00 Introduction 0:21 What we'll revise (syllabus 2026-27) 0:47 A short history: from Sindhu-Sarasvati grids to Descartes 1:28 Mapping a room with coordinates (NCERT) 2:06 The coordinate plane + Trick 1: walk, then climb 2:42 Quadrants & signs + Tricks 2, 3 3:24 Mirror images + Trick 4: reflections 3:52 Distance between two points (distance formula) 4:33 Tricks 5, 6: Pythagorean triples & comparing d² 5:05 Midpoint formula + Trick 7: B = 2M − A 5:38 Trisection points + Trick 8: equal steps 6:07 Collinear points + Trick 9 7:08 Checking shapes: right triangle, square, circle 8:02 Trick 10: the missing vertex (D = A + C − B) 9:00 10 short tricks – one-page summary 9:42 Mistakes to avoid 10:03 Quick quiz (4 questions) 11:03 Summary & contact 🏫 Guidepoint Academy – coaching for Grades 8–12 (Maths, Science, Commerce) 📍 Office No. 203, Omran Tower, Al Qasimia, Sharjah, UAE 📞 Call / WhatsApp: 056 690 0311 | 050 512 2641 👍 Like, share with your friends and subscribe for more quick revision videos! #CoordinateGeometry #Class9Maths #GanitaManjari #CBSE #ShortTricks #GuidepointAcademy #Sharjah