Скачать или смотреть CLASS IX MATHEMATICS | CIRCLES | LECTURE 03 | IMPORTANT PROBLEMS & CONCEPTS (NCERT)

CLASS IX MATHEMATICS | CIRCLES | LECTURE 03| IMPORTANT PROBLEMS & CONCEPTS (NCERT)
📘 CIRCLES | LECTURE 03 | COMMON CHORD – CONCEPTS & THEOREMS | CLASS 9 & 10

In this lecture, we study the concept of a common chord of two intersecting circles and the important results related to it. This topic is very useful for proof-based questions and numericals in Class 9 and Class 10 Mathematics.

Meaning of common chord
• Intersecting circles and their properties
• Line joining the centres of two circles
• Theorem: The line joining the centres of two intersecting circles is perpendicular to their common chord
• Proof with clear step-by-step explanation
• Important diagrams and exam-oriented approach
Topics Covered:
• Meaning of common chord
• Intersecting circles and their properties
• Line joining the centres of two circles
• Theorem: The line joining the centres of two intersecting circles is perpendicular to their common chord
• Proof with clear step-by-step explanation
• Important diagrams and exam-oriented approach
🔹 Why this lecture is important:
• Frequently asked in board exams
• Helps in understanding circle geometry proofs
• Builds base for higher-level problems
👨‍🏫 Suitable for:
Class 9 students
Class 10 students
School exam preparation
Board exam revision
📌 Watch till the end for full conceptual clarity.