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# Selina Solutions for Class 9 Mathmetics

## Solutions for Selina Concise Class 9 Mathematics

Shaalaa provides Selina Solutions for Class 9 Mathmetics and has all the answers for the questions given in Selina Concise Class 9 Mathematics. Shaalaa is surely a site that most of your classmates are using to perform in exams.

You can solve Selina Concise Class 9 Mathematics and use Shaalaa Selina Solutions for Class 9 Mathmetics to check your answers.

## Selina Solutions for Class 9 Mathmetics

Given below is chapter wise list for Selina Solutions for Class 9 Mathmetics. Select any chapter number to view solutions.

• 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 Ungrouped Data Only)
• Chapter 20: Area and Perimeter of Plane Figures
• Chapter 21: Solids [Surface Area and Volume of 3-D Solids]
• Chapter 22: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]
• Chapter 23: Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]
• Chapter 24: Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle]
• Chapter 25: Complementary Angles
• Chapter 26: Co-ordinate Geometry
• Chapter 27: Graphical Solution (Solution of Simultaneous Linear Equations, Graphically)
• Chapter 28: Distance Formula

#### Selina Solutions for Class 9 Mathmetics ## Chapters covered in Selina Solutions for Class 9 Mathmetics

#### Chapter 1: Rational and Irrational Numbers

Shaalaa has a total of 113 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Rational and Irrational Numbers are Concept for Decimal Representation of Rational Numbers, Concept of Rational Number, Concept of Real Numbers, Concept of Surds, Irrational Numbers, Properties of Rational Numbers, Rationalization of Surd, Rationalization of the Denominator

#### Chapter 2: Compound Interest (Without using formula)

Shaalaa has a total of 47 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Compound Interest (Without using formula) are Compound Interest as a Repeated Simple Interest Computation with a Growing Principal, Concept of Simple Interest, Conept of Compound Interest, More About Compound Interest

#### Chapter 3: Compound Interest (Using Formula)

Shaalaa has a total of 58 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Compound Interest (Using Formula) are Conept of Compound Interest, Inverse Formula, Miscellaneous Problem, Use of Compound Interest in Computing Amount Over a Period of 2 Or 3-years, When the Interest is Compounded Half Yearly, When the Time is Not an Exact Number of Years and the Interest is Compounded Yearly

#### Chapter 4: Expansions (Including Substitution)

Shaalaa has a total of 109 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Expansions (Including Substitution) are Algebraic Identities, Expansion of ( a + b )3, Expansion of Formula, Method of Cross - Multiplication, Special Product

#### Chapter 5: Factorisation

Shaalaa has a total of 118 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Factorisation are Factorisation, Method of Factorisation, Method of Factorisation : Difference of Two Squares, Method of Factorisation : the Sum Or Difference of Two Cubes, Method of Factorisation : Trinomial of the Form, Method of Factorization : by Taking Out the Common Factors, Method of Factorization : Grouping

#### Chapter 6: Simultaneous (Linear) Equations (Including Problems)

Shaalaa has a total of 99 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Simultaneous (Linear) Equations (Including Problems) are Elimination Method of Solving Simultaneous Equations, Equations Reducible to Linear Equations, Method of Cross - Multiplication, Method of Elimination by Equating Coefficients, Method of Elimination by Substitution, Simultaneous Equations

#### Chapter 7: Indices (Exponents)

Shaalaa has a total of 26 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Indices (Exponents) are Handling Positive, Fraction, Negative and Zero Indices, Laws of Indices, Simplification of Expressions, Solving Exponential Equations

#### Chapter 8: Logarithms

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Logarithms are Expansion of Expressions with the Help of Laws of Logarithm, Interchanging Logarithmic Form Vis-a-vis Exponential Form, Introduction of Logarithms, Law of Logarithm with Use, More About Logarithm

#### Chapter 9: Triangles [Congruency in Triangles]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Triangles [Congruency in Triangles] are Concept of Congruency of Triangles, Condition for Congruency of Triangle, Important Terms of Triangle, Introduction of Triangle, Relation Between Sides and Angles of Triangle

#### Chapter 10: Isosceles Triangles

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Isosceles Triangles are Introduction of Isosceles Triangles, Isosceles Triangle : If Two Angles of a Triangle Are Equal, the Sides Opposite to Them Are Also Equal., Isosceles Triangles : If Two Sides of a Triangle Are Equal, the Angles Opposite to Them Are Also Equal.

#### Chapter 11: Inequalities

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Inequalities are Concept for Inequalities, Inequalities Theorem : If Two Angles of a Triangle Are Unequal, the Greater Angle Has the Greater Side Opposite to It., Inequalities theorem : If two sides of a triangle are unequal, the greater side has the greater angle opposite to it., Inequalities Theorem : of All the Lines, that Can Be Drawn to a Given Straight Line from a Given Point Outside It, the Perpendicular is the Shortest.

#### Chapter 12: Mid-point and Its Converse [ Including Intercept Theorem]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Mid-point and Its Converse [ Including Intercept Theorem] are Equal Intercept Theorem, The Mid-point Theorem

#### Chapter 13: Pythagoras Theorem [Proof and Simple Applications with Converse]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Pythagoras Theorem [Proof and Simple Applications with Converse] are Introduction of Pythagoras Theorem, Pythagoras Theorem, Regular Polygon

#### Chapter 14: Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Rectilinear Figures [Quadrilaterals: Parallelogram, Rectangle, Rhombus, Square and Trapezium] are Concept of Quadrilaterals, Diagonal Properties of Different Kinds of Parallelograms, In a Parallelogram, Both the Pairs of Opposite Angles Are Equal., In a Parallelogram, Both the Pairs of Opposite Sides Are Equal., In a Rectangle, Diagonal Are Equal, In a Square, Diagonal Are Equal and Meet at Right Angles, Introduction of Rectilinear Figures, Kinds of Quadrilaterals, Names of Polygons, Rhombus is a Special Parallelogram Whose Diagonals Meet at Right Angles.

#### Chapter 15: Construction of Polygons (Using ruler and compass only)

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Construction of Polygons (Using ruler and compass only) are Construction of Parallelograms, Construction of Quadrilateral, Construction of Rectangles, Construction of Rhombus, Construction of Square, Construction of Trapezium, To Construct a Regular Hexagon

#### Chapter 16: Area Theorems [Proof and Use]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Area Theorems [Proof and Use] are Figures Between the Same Parallels, Introduction of Area Theorems, Triangles with the Same Vertex and Bases Along the Same Line

#### Chapter 17: Circle

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Circle are Arc and Chord Properties - If Two Arcs Subtend Equal Angles at the Center, They Are Equal, and Its Converse, Arc, Segment, Sector, Chord Properties - a Straight Line Drawn from the Center of a Circle to Bisect a Chord Which is Not a Diameter is at Right Angles to the Chord, Chord Properties - Chords Equidistant from the Center Are Equal (Without Proof), Chord Properties - Equal Chords Are Equidistant from the Center, Chord Properties - the Perpendicular to a Chord from the Center Bisects the Chord (Without Proof), Chord Properties - There is One and Only One Circle that Passes Through Three Given Points Not in a Straight Line, Concept of Circles, Introduction of Circle, More About Circle

#### Chapter 18: Statistics

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Statistics are Class Intervals and Class Limits, Cumulative Frequency Table, Frequency, Frequency Distribution Table, Graphical Representation of Data, Introduction of Statistics, Tabulation of Data, Types of Frequency Distribution, Variable

#### Chapter 19: Mean and Median (For Ungrouped Data Only)

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Mean and Median (For Ungrouped Data Only) are Concept of Median, Mean of Ungrouped Data, Properties of Mean

#### Chapter 20: Area and Perimeter of Plane Figures

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Area and Perimeter of Plane Figures are Area and Perimeter and Area, Area and Perimeter of Quadrilaterals, Area of Circle, Circumference of a Circle, Introduction of Area and Perimeter of Plane Figures, Some Special Types of Quadrilaterals, Some Special Types of Triangles

#### Chapter 21: Solids [Surface Area and Volume of 3-D Solids]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Solids [Surface Area and Volume of 3-D Solids] are Concept of Cube, Concept of Cuboid, Cost of an Article, Cross Section, Flow of Water ( or any other liquid ), Introduction of Solids

#### Chapter 22: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] are Concept of Perpendicular, Base, and Hypotenuse in a Right Triangle, Introduction of Trigonometrical Ratios, Notation of Angles, Reciprocal Relations

#### Chapter 23: Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios] are Trigonometrical Ratios of Angles 30 and 60, Trigonometrical Ratios of Angles 45, Trigonometric Equation Problem and Solution

#### Chapter 24: Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle]

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Solution of Right Triangles [Simple 2-D Problems Involving One Right-angled Triangle] are Solution of Right Triangles

#### Chapter 25: Complementary Angles

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Complementary Angles are Complementary Angles for Sine ( Sin ) and Cosine ( Cos ), Complimentary Angles for Secant ( Sec ) and Cosecant ( Cosec ), Complimentary Angles for Tangent ( Tan ) and Contangency ( Cot ), Concept of Trigonometric Ratios of Complementary Angles, Introduction of Complementary Angles

#### Chapter 26: Co-ordinate Geometry

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Co-ordinate Geometry are Cartesian Plane, Co-ordinates of Points, Dependent and Independent Variables, Finding the Slope and the Y-intercept of a Given Line, Graphs, Graphs of Linear Equations, Inclination and Slope, Introduction of Co-ordinate Geometry, Ordered Pair, Plotting of Points, Quadrants and Sign Convention, Y-intercept

#### Chapter 27: Graphical Solution (Solution of Simultaneous Linear Equations, Graphically)

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Graphical Solution (Solution of Simultaneous Linear Equations, Graphically) are Graphs of Linear Equations in Two Variables, Solution of Simulataneous Linear Equation Graphically

#### Chapter 28: Distance Formula

Shaalaa has a total of 0 questions are solved for this Chapter in Class 9 Mathmetics. Chapters covered in Distance Formula are Circumcentre of a Triangle, Distance Formula, Introduction of Distance Formula

## Selina Solutions for Class 9 Mathmetics

Class 9 Selina solutions answers all the questions given in the Selina textbooks in a step-by-step process. Our Maths tutors have helped us put together this for our Class 9 Students. The solutions on Shaalaa will help you solve all the Selina Class 9 Mathmetics questions without any problems. Every chapter has been broken down systematically for the students, which gives fast learning and easy retention.

Shaalaa provides free Selina solutions for Class 9 Mathmetics. Shaalaa has carefully crafted Selina solutions for Class 9 Mathmetics that can help you understand the concepts and learn how to answer properly in your board exams. You can also share our link for free Class 9 Mathmetics Selina solutions with your classmates.

If you have any doubts while going through our Class 9 Mathmetics Selina solutions, then you can go through our Video Tutorials for Mathmetics. The tutorials should help you better understand the concepts.

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