Class 9 Mathematics – Circles & Coordinate Geometry Notes (Conceptual) 1. Circles Definition A circle is a set of all points in a plane that are at a fixed distance from a fixed point called...
What is a Quadrilateral? A quadrilateral is a closed figure with four sides and four angles. The sum of all angles in a quadrilateral is always 360°. 2. Types of Quadrilaterals (Based...
What is Geometry? Geometry is the branch of mathematics that deals with shapes, sizes, and positions of figures. It studies points, lines, angles, surfaces, and solids. 2. Euclid and...
What is a Linear Equation in Two Variables? A linear equation in two variables is an equation that involves two unknowns (usually x and y) and represents a straight line on a graph. Each solution...
Polynomials (Conceptual Notes) What is a Polynomial? A polynomial is an algebraic expression made of one or more terms. Each term is made up of a coefficient (number) and a variable (letter),...