Скачать или смотреть Class 9 Maths | Circles | Exercise 9.3 Q11 & Q12 Proofs | NCERT Solutions

📘 *Class 9 Mathematics – Chapter 9: Circles*
🎥 *Exercise 9.3 | Questions 11 & 12 | NCERT Solutions | Tangent Theorems & Geometry Proofs*

11. ABC and ADC are two right triangles with common hypotenuse AC. Prove that
L CAD = Z CBD.
12. Prove that a cyclic parallelogram is a rectangle.

In this lecture, we solve *Questions 11 and 12* from *Exercise 9.3 (Circles)* of Class 9 NCERT Maths.
These problems deal with **important theorems related to tangents, radii, and cyclic properties**, explained step by step for complete conceptual clarity.

🧠 *Concepts Covered:*
• Tangent and radius relationship
• Proof-based geometry questions
• Theorem applications in circle geometry
• Logical steps for writing proper geometry proofs

🎯 *Perfect For:*
✔️ Class 9 CBSE / ICSE / State Board students
✔️ Exam preparation and NCERT practice
✔️ Students learning geometry proofs and theorems

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