These handwritten Class 9 Mathematics Chapter 7 (Circles) notes are designed in a neat, easy-to-understand format for quick learning and exam revision. The notes cover all important concepts, including the definition of a circle, radius, diameter, chord, arc, sector, segment, circumference, tangent, concentric circles, important properties, and all major theorems with their converses. Each topic is explained using simple language, colorful headings, and clear hand-drawn diagrams to improve under...