Скачать или смотреть Class 9 Ch 9 Circles Theorem 9.2 | Equal angles at the centre | Equal Chords Lecture 2

📚 Class 9 Maths | Chapter 9 – Circles | Theorem 9.2
Class 9 Maths – Chapter 9: Circles
🎓 Lecture 2: Theorem 9.2 – If angles subtended by chords at the centre are equal, then the chords are equal
In this lecture, we explain Theorem 9.2 from the NCERT Class 9 Maths textbook with step-by-step construction, proof, and explanation. This is the converse of Theorem 9.1, and helps you understand the deep relationship between chords and central angles in a circle.

🟢 What you’ll learn in this video:

Meaning of chords and central angles in a circle

Statement and proof of Theorem 9.2

Construction used in the proof

Application of SSS congruence rule

Importance of the theorem in solving circle problems

📘 Useful for:
CBSE | NCERT | Class 9 | Term 1 & Term 2 | Board Exams | School Exams

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Class 9 Maths
Theorem 9.2: Equal Angles at Centre ⇒ Equal Chords
If the angles subtended by the chord of a circle at the centre are equal, then the chord are equal
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Equal Chords = Equal Angles at Centre
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Theorem 9.2 Explained
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