Selina Concise Mathematics Class 9 ICSE Solutions SELINA CONCISE MATHEMATICS CLASS 9 ICSE SOLUTIONS Chapter 1 - Rational and Irrational Numbers Chapter 2 - Compound Interest (Without using formula) Chapter 3 - Compound Interest (Using Formula) Chapter 4 - Expansions (Including Substitution) Chapter 5 - Factorisation Chapter 6 - Simultaneous (Linear) Equations (Including Problems) Chapter 7 - Indices (Exponents) Chapter 8 - Logarithms Chapter 9 - Triangles [Congruency in Triangles] Chapter 10 - Isosceles Triangles Chapter 11 - Inequalities Chapter 12 - Mid-point and Its Converse [ Including Intercept Theorem] Chapter 13 - Pythagoras Theorem [Proof and Simple Applications with Converse] Chapter 14 - Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium] Chapter 15 - Construction of Polygons (Using ruler and compass only) Chapter 16 - Area Theorems [Proof and Use] Chapter 17 - Circle Chapter 18 - Statistics Chapter 19 - Mean and Median (For Ungr...