COMPLETE 2D🔥🔥Triangle & Quadrilateral Theory |ON BASIS OF SSC CGL 2026 | Area, Perimeter, Inradius🔥

📐 TRIANGLE & QUADRILATERAL — COMPLETE THEORY | SSC CGL 2026 MATHS SSC CGL 2026, CHSL, CPO, Railway, BSSC aur other competitive exams ke liye is video mein Triangle & Quadrilateral ka complete concept ek systematic way mein cover kiya gaya hai. Agar aap Geometry ko basic se strong karna chahte hain, to ye class aapke liye kaafi useful rahegi. Is video mein theory + important properties + formulas ko bilingual (Hindi + English) mein explain kiya gaya hai. ━━━━━━━━━━━━━━━━━━━━ 📚 IS VIDEO MEIN KYA-KYA PADHAYA? ━━━━━━━━━━━━━━━━━━━━ 🔺 TRIANGLE — COMPLETE THEORY • Triangle Basic Concepts • Types of Triangle • Scalene Triangle • Isosceles Triangle • Equilateral Triangle • Right Angled Triangle • Acute & Obtuse Triangle • Angle Sum Property • Exterior Angle Property • Triangle Inequality • Side–Angle Relationship 📌 TRIANGLE FORMULAS • Perimeter of Triangle • Semi-Perimeter • Area of Triangle • Heron's Formula • Area using Two Sides & Included Angle • Area using Inradius • Area using Circumradius • Inradius (r) • Circumradius (R) 📐 SPECIAL TRIANGLES • 45°–45°–90° Triangle • 30°–60°–90° Triangle • Pythagoras Theorem • Pythagorean Triplets • Right Triangle Inradius & Circumradius 📍 TRIANGLE CENTRES • Centroid • In-centre • Circumcentre • Orthocentre • Median • Altitude • Angle Bisector • Perpendicular Bisector • Important relations between centres ━━━━━━━━━━━━━━━━━━━━ ⬛ QUADRILATERAL — COMPLETE THEORY ━━━━━━━━━━━━━━━━━━━━ • Basic Properties of Quadrilateral • Angle Sum = 360° • Diagonals of Quadrilateral ⬛ SQUARE • Properties • Area • Perimeter • Diagonal • Inradius • Circumradius • Diagonal Properties ▭ RECTANGLE • Properties • Area • Perimeter • Diagonal • Circumradius • Diagonal Properties ▱ PARALLELOGRAM • Properties • Area • Perimeter • Angle Properties • Diagonal Properties • Area using included angle ◇ RHOMBUS • Properties • Area • Perimeter • Area using Diagonals • Area using Angle • Diagonal Properties ⏢ TRAPEZIUM • Properties • Area • Perimeter • Parallel Sides • Mid-segment / Median • Isosceles Trapezium 🔷 KITE • Properties • Area • Perimeter • Diagonal Properties ⭕ CYCLIC QUADRILATERAL • Opposite Angles • Cyclic Quadrilateral Properties • Important Exam Concepts ━━━━━━━━━━━━━━━━━━━━ 🔥 QUANTVIST SERIES ━━━━━━━━━━━━━━━━━━━━ 📌 PYQ SERIES PLAYLIST: SSC, Railway, BSSC aur other competitive exams ke Topic-wise & Chapter-wise Maths PYQ Questions ke liye PYQ Series playlist ko zaroor check karein. 👉 PYQ SERIES PLAYLIST:   • SSC PYQ SERIES 2025 .   📌 QFR SERIES — QUICK FORMULA REVISION: 15–20 minutes mein important Maths formulas ko quickly revise karne ke liye QFR (Quick Formula Revision) Series ko follow karein. 👉 QFR SERIES PLAYLIST:    • QFR SERIES :-QUANTVIST FAST REVISION 2026   ━━━━━━━━━━━━━━━━━━━━ 🎯 THIS VIDEO IS USEFUL FOR ━━━━━━━━━━━━━━━━━━━━ SSC CGL 2026 SSC CHSL SSC CPO SSC Selection Post Delhi Police Railway Exams BSSC Other Competitive Exams ━━━━━━━━━━━━━━━━━━━━ 📌 QUANTVIST ━━━━━━━━━━━━━━━━━━━━ From Basic to Selection 🎯 Quantvist par aapko Competitive Exams ke liye Maths Concepts, Formulas, PYQs, Short Tricks & Exam-oriented Questions milenge. Agar aap SSC CGL 2026 ya kisi bhi competitive exam ki Maths preparation kar rahe hain, to channel ko SUBSCRIBE karke Quantvist ke saath preparation continue karein. 👍 Video useful lage to LIKE karein 💬 Apna doubt/comment zaroor karein 🔔 Channel ko SUBSCRIBE karein #SSC CGL2026 #SSC CGLMaths #Geometry #Triangle #Quadrilateral #Quantvist #SSCMaths #CGL2026 #MathsForSSC #GeometryForSSC