ICSE Class 9 Maths Selina Solutions Chapter Wise Solutions Here

The ICSE Class 9 Maths Selina Solutions prepared by subject experts at Physics Wallah provide a detailed overview of the concepts covered in the Selina textbook. These solutions are designed to help students grasp challenging topics such as algebra, geometry, trigonometry, and statistics. Each solution is presented step-by-step, making it accessible for students to understand and solve problems effectively. By using these expert-created solutions students can enhance their math proficiency deepen their understanding of the subject and achieve better results in their examinations.

ICSE Class 9 Maths Selina Solutions Chapter wise List

Here are the chapter-wise notes for ICSE Class 9 Maths Selina Solutions:

ICSE Class 9 Maths Selina Solutions Chapter wise
Chapter 1 Rational and Irrational Numbers
Chapter 2 Compound Interest (Without Using Formula)
Chapter 3 Compound Interest (Using Formula)
Chapter 4 Expansions
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
Chapter 14 Rectilinear Figures (Quadrilaterals: Parallelogram, Rectangles, Rhombus, Square, and Trapezium)
Chapter 15 Construction of Polygons
Chapter 16 Area Theorems
Chapter 17 Circle
Chapter 18 Statistics
Chapter 19 Mean and Median
Chapter 20 Area and Perimeter of Plane Figures

Selina Solutions Concise Mathematics For Class 9 Chapters Description

Here is a detailed description of each chapter covered in Selina Concise Mathematics for Class 9:

ICSE Class 9 Maths Selina Solutions Chapter 1 Rational and Irrational Numbers :

• Description : This chapter introduces students to rational and irrational numbers, explaining their properties, operations (addition, subtraction, multiplication, division), and simplification techniques.
• Topics Covered : Definitions of rational and irrational numbers, operations involving these numbers, and their applications in solving equations and problems.

ICSE Class 9 Maths Selina Solutions Chapter 2 Compound Interest (Without Using Formula) :

• Description : It covers the concept of compound interest, emphasizing practical scenarios where the formula may not be directly applied. Instead, it focuses on understanding the concept through real-life examples.
• Topics Covered : Understanding the growth of investments, calculating compound interest intuitively, and solving problems related to investments over time.

ICSE Class 9 Maths Selina Solutions Chapter 3 Compound Interest (Using Formula) :

• Description : This chapter dives deeper into compound interest calculations using the formula A = P(1 + r/n)^(nt), where A is the final amount, P is the principal amount, r is the annual interest rate, n is the number of times interest is compounded per year, and t is the number of years.
• Topics Covered : Deriving the formula, solving compound interest problems using the formula, and understanding the impact of compounding frequency on the final amount.

ICSE Class 9 Maths Selina Solutions Chapter 4 Expansions :

• Description : Explores algebraic expansions, particularly focusing on binomial expansions using Pascal's triangle and related exercises.
• Topics Covered : Binomial theorem, expansion of binomials using Pascal's triangle, simplification of algebraic expressions, and solving problems involving binomial expansions.

ICSE Class 9 Maths Selina Solutions Chapter 5 Factorisation :

• Description : Discusses methods for factorizing algebraic expressions, helping students understand how to factorize quadratic expressions and higher-order polynomials.
• Topics Covered : Factorization by common factors, factorization of quadratic expressions (using splitting the middle term, completing the square, and the quadratic formula), and solving equations by factorization.

ICSE Class 9 Maths Selina Solutions Chapter 6 Simultaneous (Linear) Equations (Including Problems) :

• Description : Introduces simultaneous linear equations, covering graphical and algebraic methods to solve them.
• Topics Covered : Graphical representation of linear equations and methods of solving simultaneous equations (substitution method, elimination method).

ICSE Class 9 Maths Selina Solutions Chapter 7 Indices (Exponents) :

• Description : Laws of indices (exponents), simplifying expressions with indices, and solving equations involving exponents.
• Topics Covered : Basic laws of indices, negative and zero indices, laws of indices involving products, quotients, and powers, solving equations with indices, and applications in scientific notation.

ICSE Class 9 Maths Selina Solutions Chapter 8 Logarithms :

• Description : Covers logarithmic functions, laws of logarithms, and solving equations involving logarithms.
• Topics Covered : Definition of logarithms, laws of logarithms (product, quotient, power), change of base formula, solving logarithmic equations, and applications in exponential growth and decay.

ICSE Class 9 Maths Selina Solutions Chapter 9 Triangles (Congruency in Triangles) :

• Description : Discusses congruency criteria of triangles and related geometric concepts.
• Topics Covered : Congruence of triangles (SSS, SAS, ASA, RHS criteria), properties of congruent triangles, and solving problems involving congruence of triangles.

ICSE Class 9 Maths Selina Solutions Chapter 10 Isosceles Triangles :

• Description : Focuses on properties and theorems related to isosceles triangles, including the properties of the base angles and the vertex angle.
• Topics Covered : Isosceles triangle properties, theorems related to angles and sides, and applications in geometric constructions and proofs.

ICSE Class 9 Maths Selina Solutions Chapter 11 Inequalities :

• Description : Introduces inequalities and their graphical representations, focusing on solving inequalities and their applications in real-life scenarios.
• Topics Covered : Solving linear inequalities, representing inequalities on a number line, solving quadratic inequalities, and applications in optimization problems.

ICSE Class 9 Maths Selina Solutions Chapter 12 Mid-Point and Its Converse (Including Intercept Theorem) :

• Description : Covers the midpoint theorem, its converse, and the intercept theorem in geometry, exploring relationships between line segments and their midpoints.
• Topics Covered : Midpoint theorem and its converse, properties of midpoints, intercept theorem, and applications in coordinate geometry and geometric constructions.

ICSE Class 9 Maths Selina Solutions Chapter 13 Pythagoras Theorem :

• Description : Explores the Pythagorean theorem, its proofs, and applications in calculating distances, checking for right triangles, and solving geometric problems.
• Topics Covered : Statement and proof of Pythagoras theorem, converse of Pythagoras theorem, solving problems involving right triangles, and applications in 2D and 3D geometry.

ICSE Class 9 Maths Selina Solutions Chapter 14 Rectilinear Figures (Quadrilaterals) :

• Description : Discusses properties and theorems related to quadrilaterals such as parallelograms, rectangles, rhombuses, squares, and trapeziums.
• Topics Covered : Properties of parallelograms, rectangles, rhombuses, squares, and trapeziums, theorems related to their angles and sides, and applications in geometric proofs and constructions.

ICSE Class 9 Maths Selina Solutions Chapter 15 Construction of Polygons :

• Description : Covers methods to construct various polygons using a ruler and compass, emphasizing accuracy and geometric principles.
• Topics Covered : Constructing polygons (triangles, quadrilaterals, pentagons, hexagons) with given sides and angles, understanding geometric construction principles, and applications in architecture and design.

ICSE Class 9 Maths Selina Solutions Chapter 16 Area Theorems :

• Description : Discusses theorems related to the area of triangles, parallelograms, and other polygons, including the area of composite figures.
• Topics Covered : Area of triangles using base-height formula and Heron's formula, area of parallelograms, rectangles, rhombuses, and trapeziums, and solving problems involving area of composite figures.

ICSE Class 9 Maths Selina Solutions Chapter 17 Circle :

• Description : Explores the properties of circles, chords, tangents, and related theorems involving angles and segments within circles.
• Topics Covered : Properties of circles (radius, diameter, chord, tangent), theorems related to angles in circles (inscribed angles, angles in alternate segments), and applications in circle theorems and constructions.

ICSE Class 9 Maths Selina Solutions Chapter 18 Statistics :

• Description : Introduces basic concepts of statistics including data collection, representation, measures of central tendency (mean, median, mode), and graphical representation of data.
• Topics Covered : Data types (primary, secondary), methods of data collection, organization of data (frequency distribution, cumulative frequency), measures of central tendency, and graphical representation (histograms, frequency polygons).

ICSE Class 9 Maths Selina Solutions Chapter 19 Mean and Median :

• Description : Further explores mean and median, including their calculation methods, significance in data analysis, and applications in solving statistical problems.
• Topics Covered : Calculation of mean and median for grouped and ungrouped data, comparison between mean and median, and applications in analyzing real-life data sets.

ICSE Class 9 Maths Selina Solutions Chapter 20 Area and Perimeter of Plane Figures :

• Description : Covers formulas and methods for calculating the area and perimeter of various plane figures, including triangles, rectangles, circles, and composite figures.
• Topics Covered : Formulas for perimeter and area of triangles, rectangles, squares, circles, and composite figures, solving problems involving area and perimeter, and applications in practical scenarios.

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