📒 Definitions (Similar Figures)
Learn and practice Class 9 Mathematics Chapter 9 Definitions on Similar Figures with clear explanations. This page includes free downloadable notes and definitions aligned with the Punjab PECTA 2025 syllabus.
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Chapter 1
Real Numbers
Chapter 2
Logarithms
Chapter 3
Sets and Functions
Chapter 4
Factorization and Algebraic Manipulation
Chapter 5
Linear Equations and Inequalities
Chapter 6
Trigonometry
Chapter 7
Coordinate Geometry
Chapter 8
Logic
Chapter 9
Similar Figures
Chapter 10
Graphs of Functions
Chapter 11
Loci and Construction
Chapter 12
Information Handling
Chapter 13
Probability
Chapter 9 Definitions - Similar Figures
This chapter focuses on similar figures, polygons, triangles, and solids, their properties, and relationships between corresponding sides, angles, areas, and volumes.
Chapter 9 introduces the concept of similarity in geometric figures, which is fundamental in understanding how shapes can have the same form but different sizes. The definitions cover polygons, triangles, solids, and their properties when they are similar.
The chapter explains how to identify similar figures, calculate ratios of corresponding sides, areas, and volumes, and understand the properties of regular polygons and tessellations.
Key Definitions Covered
- Similar polygons and triangles
- Ratio of areas of similar figures
- Similar solids and volume ratios
- Regular polygons and their properties
- Tessellation and its types
- Geometrical properties of triangles, parallelograms, and quadrilaterals
Important Note:
Remember that two figures are similar if they have the same shape but not necessarily the same size. For polygons, this means corresponding angles are equal and corresponding sides are proportional.
Created by Hira Science Academy | Aligned with PECTA 2025 Syllabus