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You have learned about Geometry, the concept of congruent figures etc. In this chapter,
you’ll learn to find out the Area of a figure. It is a number associated with the part of the
plane enclosed by that figure. Area of any given figure is always expressed in some unit
such as cm 2, m 2, hectares, etc. In earlier classes, you have also studied some of the
formulae that are used to find areas of different geometrical figures such as a triangle,
rectangle, square, parallelogram, etc. Now in this chapter, you’ll study about
parallelograms on the same base and between the same parallels in detail with
theorems, figures etc.
9.1 Introduction
9.2 Figures on the same Base and Between the Same Parallels
9.3 Parallelograms on the same Base and between the same Parallels
9.4 Triangles on the same Base and between the same Parallels
9.5 Summary
Section 9.2 – In this section, you’ll learn about geometrical figures that have the same
base and lie between the same parallels. The concepts are explained in detail with
numerous figures and examples for you to understand clearly.
Section 9.3 – In this section, you’ll learn that parallelograms on the same base and
between the same parallels are equal in area. Activities, theorems & proofs, examples & solutions are provided for clarity of concepts, moreover to help you solve exercises with
ease.
Section 9.4 – Another concept to be learnt in this chapter is about the Triangles on the
same Base and between the same Parallels. NCERT Maths textbook provides figures,
examples & solutions to help you learn and understand the concepts well.
To know more about the NCERT Solutions for Class 9 Maths – Chapter 9 Areas of
Parallelograms and Triangles, you should explore the exercises below. You can also
download the NCERT Solutions for Class 9 Maths Chapter 9 PDF, solved by expert
Maths trainers.
Published on 2020-01-29 09:35:51 by arunima. Last Modified on 2020-01-29 09:35:51
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