9th STD Mathematics Part 2 Solution (Digest) Chapter 1: Basic Concepts in Geometry Excercise 1.1 Excercise 1.2 Excercise 1.3 Problem Set 1 Chapter 2: Parallel Lines Excercise 2.1 Excercise 2.2 Problem Set 2 Chapter 3: Triangles Excercise 3.1 Excercise 3.2 Excercise 3.3 Excercise 3.4 Excercise 3.5 Problem Set 3 Chapter 4: Constructions of Triangles Excercise 4.1 Excercise 4.2 Excercise 4.3 Problem Set 4 Chapter 5: Quadrilaterals Excercise 5.1 Excercise 5.2 Excercise 5.3 Excercise 5.4 Excercise 5.5 Problem Set 5 Chapter 6. Circle Excercise 6.1 Excercise 6.2 Excercise 6.3 Problem Set 6 Chapter 7: Co-ordinate Geometry Excercise 7.1 Excercise 7.2 Problem Set 7 Chapter 8: Co-ordinate Geometry Excercise 8.1 Excercise 8.2 Problem Set 8 Chapter 9: Surface Area and Volume Excercise 9.1 Excercise 9.2 Excercise 9.2 Problem Set 8