Chapter 11 -Perimeter and Area : Part-2 : 11.3 Area of a Parallelogram
Chapter 11 -Perimeter and Area : Part-3 : Exercise 11.2
Chapter 11 -Perimeter and Area : Part-4 : 11.5.2 Area of Circle
Chapter 11 -Perimeter and Area : Part-5 : 11.7 Applications
Chapter 11 -Perimeter and Area : Answers Part-1,2,3,4,5
Chapter 12 -Algebraic Expressions : Part-1 : 12.1 Introduction
Chapter 12 -Algebraic Expressions : Part-2 : 12.4 Like and Unlike Terms
Chapter 12 -Algebraic Expressions : Part-3 : 12.6 Addition and Subtraction of Algebraic Expressions
Chapter 12 -Algebraic Expressions : Part-4 : Exercise 12.2
Chapter 12 -Algebraic Expressions : Part-5 : 12.8 Using Algebraic Expressions - Formulas and Rules
Chapter 12 -Algebraic Expressions : Answers Part-1,2,3,4,5
Chapter 13 -Exponents and Powers : Part-1 : 13.1 Introduction