📒 Definitions (Loci and Construction)
Learn and practice Class 9 Mathematics Chapter 11 Definitions on Loci and Construction with clear explanations. This page includes free downloadable notes 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 11 - Loci and Construction Definitions
This chapter focuses on loci and geometric constructions, exploring how sets of points follow specific rules and how to construct various geometric figures.
Chapter 11 introduces the concept of loci - sets of points that satisfy specific geometric conditions. Understanding loci is fundamental to geometric constructions and helps visualize mathematical relationships in space.
Key Definitions Covered
- Locus and its applications in geometry
- Types of triangles and their properties
- Triangle inequality theorem
- Perpendicular bisectors and medians
- Points of concurrency (centroid, circumcentre, orthocentre)
- Angle bisectors and altitudes
- Geometric constructions using loci
Important Note:
Understanding loci helps visualize geometric relationships and is essential for solving construction problems. The different points of concurrency (centroid, circumcentre, orthocentre) have unique properties and applications in triangle geometry.
Created by Hira Science Academy | Aligned with PECTA 2025 Syllabus