If you're in 9th grade and want to strengthen your Maths basics, here’s a structured
guide covering essential topics:
1. Number System
● Types of numbers (Natural, Whole, Integers, Rational, Irrational)
● Real numbers & their decimal expansions
● Laws of exponents
2. Algebra
● Polynomials (Degree, Zeroes, Factorization)
● Linear Equations in Two Variables
● Algebraic Identities:
○ (a+b)2=a2+2ab+b2
○ (a−b)2=a2−2ab+b2
○ a2−b2=(a+b)(a−b)
○ =(a+b)(a−b)
3. Coordinate Geometry
● Cartesian plane (X & Y axes)
● Plotting points (e.g.,
● (2,3)
● (2,3))
4. Geometry
● Lines & Angles (Types, Properties)
● Triangles (Congruency, Pythagoras Theorem)
● Quadrilaterals (Properties of Parallelogram, Rectangle)
● Circles (Chord, Tangent, Arc)
5. Mensuration
● Area & Perimeter of 2D shapes (Square, Rectangle, Circle, Triangle)
● Surface Area & Volume of 3D shapes (Cube, Cuboid, Cylinder)
guide covering essential topics:
1. Number System
● Types of numbers (Natural, Whole, Integers, Rational, Irrational)
● Real numbers & their decimal expansions
● Laws of exponents
2. Algebra
● Polynomials (Degree, Zeroes, Factorization)
● Linear Equations in Two Variables
● Algebraic Identities:
○ (a+b)2=a2+2ab+b2
○ (a−b)2=a2−2ab+b2
○ a2−b2=(a+b)(a−b)
○ =(a+b)(a−b)
3. Coordinate Geometry
● Cartesian plane (X & Y axes)
● Plotting points (e.g.,
● (2,3)
● (2,3))
4. Geometry
● Lines & Angles (Types, Properties)
● Triangles (Congruency, Pythagoras Theorem)
● Quadrilaterals (Properties of Parallelogram, Rectangle)
● Circles (Chord, Tangent, Arc)
5. Mensuration
● Area & Perimeter of 2D shapes (Square, Rectangle, Circle, Triangle)
● Surface Area & Volume of 3D shapes (Cube, Cuboid, Cylinder)
