9th Class Math Definitions – English Medium (New Syllabus 2025–26) | Free PDF Notes

Looking for 9th Class Math Definitions in English Medium? You’ve landed at the right place! Here you will find complete chapter-wise mathematics definitions based on the Punjab Textbook Board New Syllabus 2025–26.

These notes are specially prepared in easy English language, covering all units with clear and precise definitions. Whether you are preparing for monthly assessments, send-ups, or board exams, these definitions will make your preparation easier and more effective.


📚 What’s Included in 9th Class Math Definitions (English Medium)?

✅ Complete definitions from Unit 1 to Unit 13
Clear explanations written in simple English
Key properties, terms, and rules included
Well-structured notes for exam preparation
Printable & mobile-friendly PDF format
Free download – No sign-up required


📕 9th Class Math Definitions – Chapter Wise (English Medium)

Here’s the list of chapters with the important definitions included in the new 9th class Mathematics book:


✅ Unit 1 – Real Numbers

Definitions of rational numbers, irrational numbers, real numbers, and their representation on the number line along with basic properties.


✅ Unit 2 – Logarithms

Covers definitions of logarithms, exponential form, log rules, and base conversion. Useful for simplifying exponential equations.


✅ Unit 3 – Sets and Functions

Includes definitions of set, subset, universal set, null set, Venn diagram, and function with its types.


✅ Unit 4 – Factorization and Algebraic Manipulation

Important definitions:

  • Factorization
  • Algebraic identities
  • Algebraic expressions
  • Polynomials

✅ Unit 5 – Linear Equations and Inequalities

Definitions include linear equation in one variable, linear equation in two variables, inequality, and graphical representation of inequalities.


✅ Unit 6 – Trigonometry

Basic trigonometric definitions:

  • Sine (sin)
  • Cosine (cos)
  • Tangent (tan)
  • Trigonometric ratios

✅ Unit 7 – Coordinate Geometry

Definitions:

  • Point
  • Distance formula
  • Midpoint formula
  • Slope of a line

✅ Unit 8 – Logic

Covers statement, simple statement, compound statement, logical connectives, and truth tables.


✅ Unit 9 – Similar Figures

Includes definition of similar figures, similarity of triangles, and proportion of sides and angles.


✅ Unit 10 – Graphs of Functions

Definitions:

  • Graph of a function
  • Linear graph
  • Quadratic graph

✅ Unit 11 – Loci and Construction

Definitions include locus of a point and geometrical constructions using compass and scale.


✅ Unit 12 – Information Handling

Key terms:

  • Data
  • Mean
  • Median
  • Mode
  • Charts and tables

✅ Unit 13 – Probability

Important definitions:

  • Outcome
  • Event
  • Probability
  • Probability scale (0 to 1)

📌 Boards Covered

These 9th Class Math Definitions (English Medium) are useful for all Punjab boards:

  • Lahore Board
  • Rawalpindi Board
  • Gujranwala Board
  • Faisalabad Board
  • Sahiwal Board
  • DG Khan Board
  • Bahawalpur Board
  • Sargodha Board
  • Multan Board

🎯 Why Choose LastHopeStudy.com?

✔️ Notes prepared by experienced teachers
✔️ Based on PTB New Syllabus 2025–26
✔️ Helpful for tests, exams, and board preparation
✔️ Available for both English and Urdu Medium
✔️ Free PDF download, easy to access


📥 Download 9th Class Math Definitions (English Medium) PDF

👉 Get your Class 9 Math English Medium Definitions PDF now – absolutely free from LastHopeStudy.com.

📖 Well-organized, easy-to-understand, and perfect for exam preparation.


✨ With these 9th Class Math Definitions (English Medium), you’ll be able to prepare efficiently and score excellent marks in your exams.

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