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RD Sharma Class 6 Maths Solutions Chapter 20 - Mensuration

VSAT 2023

RD Sharma Solutions for Class 6 Maths Chapter 20 - Mensuration - Free PDF Download

Detailed step-by-step examples are given here for the RD Sharma Solutions Of Class 6 Maths Chapter 20. These RD Sharma Class 6 Maths Chapter 20, solutions for Mensuration are extremely helpful for their exam preparation. For students who are studying for their final exams, RD Sharma Solutions Of Class 6 Maths Chapter 20 will be very beneficial. The RD Sharma Class 6 Mensuration covers sums at various levels of difficulty, from basic questions and intermediate questions to challenging questions, all are available in PDF format on Vedantu and can be downloaded for free.

Last updated date: 31st May 2023
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Class 6 RD Sharma Textbook Solutions Chapter 20 - Mensuration

Important Topics in RD Sharma Class 6 Maths Chapter 20

Some important topics of this chapter are the perimeter of a rectangle, and regular shapes and areas of shapes such as closed and equilateral triangle, rectangle, open curve, square, etc.

Exercises in Chapter 20 RD Sharma Class 6 Mensuration are: 

Preparation Tips

  • To test what you can recall, draw mind maps or other overview diagrams, and then check them against your notes. Note where specifics have been left out, or where holes remain, and go through and check those places.

  • It is also useful to adjust the environment in which you study, such as your home, the library at school or college, a peaceful café, or someone else's house.


Chapter 10 Mensuration contains all the problems in the CBSE syllabus, NCERT Class 6 New Books for Maths. All the problems are solved here with a complete clarification and are available for free download. NCERT Class 6 New Chapter 10 Mensuration Books for Maths are given above. The benefits of accessing NCERT Class 6 New Books are not only limited to your progress in Mathematics but can offer a framework for other relevant topics. It will be a great benefit to get a strong grip on exhaustive sections of certain Mathematics chapters such as Chapter 10 Mensuration etc. when studying the derivations and principles behind numerical Maths.

What is Mensuration?

Mensuration could be defined as the division of mathematics that studies geometric figure calculation and its parameters such as area, length, volume, lateral surface area, surface area, etc is known as mensuration. The subject outlines the principles of calculation and discusses all the essential equations and properties of various geometric shapes and figures that we come across.  It is an important chapter for class 6 students and plays a crucial role in making the concepts clear. 

Mensuration is a subject of geometry. It deals with the size, region and density of different forms both 2D and 3D. Let’s think about 2D and 3D forms and the distinction between them and try learning it  in detail.

Let’s Learn About 2D and 3D Diagrams!

A 2D diagram is a shape made on a plane by three or more straight lines or a closed segment. Such shapes do not have a width or a height. But have two dimensions-length and breadth. Therefore, they are known as 2D shapes. In 2D figures, area (A) and perimeter (P) is to be ascertained. Whereas, a 3D shape  is surrounded by a variety of surfaces or planes. These shapes are often considered robust types. Unlike 2D shapes, 3D shapes have height or depth. They have three-dimensional length, breadth and height/depth and are thus labelled as 3D figures. 3D shapes are made up of many 2D shapes. Commonly known as strong forms, volume (V), curved surface area (CSA), lateral surface area (LSA) and complete surface area (TSA) are used in measuring 3D shapes.

Some Important Terms in Mensuration are:

  • Area (A): Area is called the surface occupied by a defined closed region. 

  • Perimeter (P): Total length of a figure’s boundary is called its perimeter. Perimeter is determined by only two-dimensional shapes or figures. It is a line along the edge of the closed vessel and is represented by P. Its measures are taken in a square unit.

  • Volume (V): The width of the space in a three-dimensional closed shape or surface, like the area by a room or cylinder, is called volume. Volume is denoted by the alphabet V and it is the cubic meter.

  • Curved Surface Area (CSA):  The curved surface area is an area of the only curved surface in a figure, ignoring the base and the top. Such as a sphere or a circle. 

  • Lateral Surface Area (LSA): Total area of a figure’s lateral surfaces is called the Lateral Surface Area. Lateral surfaces are the layers covering the figure.  

  • Total Surface Area (TSA): Calculation of the total area of all surfaces is called the Cumulative Surface Region. For instance, we can obtain the Total Surface Area in a cuboid by adding the area of all six surfaces. 

  • Square Unit: A square unit is simply a one-unit square area. When we quantify some surface area, we relate it to the sides of one block square to know how many units will fit in the respective shape.

  • Cube Unit: A cubic unit is a one-unit volume filled by a side cube. When we calculate the volume of any number, we refer to this cube of side one unit and see how many of these component cubes will fit in the defined closed form. 

If you want to learn more about Mensuration, just click the link and get into the world of fun-learning studying. RD Sharma solutions for class 6 students are always available on the Vedantu website free of cost. 

FAQs on RD Sharma Class 6 Maths Solutions Chapter 20 - Mensuration

1. Why are we studying Mensuration?

Mensuration is a mathematics division where we learn about all kinds of forms and proportions, whether they are 2D or 3D shapes. Circles, triangles, cubes, cylinders and others are some of the very common shapes that we see in day to day lives. Such figures are used to consider the sorts or types of geometric forms that we see in our everyday lives. Geometry also helps in calculating the proportions of certain shapes. Want to learn more about Mensuration, just visit Vedantu

2. What is meant by Solid Mensuration?

Solid mensuration is another term of solid geometry which is a discipline of mathematics where measurements of three-dimensional forms are studied. Length, width and height are the three most important aspects of a solid measurement. The study of various solids is simply known as solid mensuration. It helps in measuring height, length, breadth, volume, area and many other aspects. The chapter is in a detailed manner in RD Sharma solution for class 6 Chapter 20 Mensuration. Vedantu also provides free PDFs. 

3. What is an instance of a plain figure?

Plain figures, for example, squares, triangles and circles are two dimensional. The straight line that forms a plain outline is known as sides. Some common examples of plane figures that we see in everyday lives could be a sheet of paper, a stamp, signboards on the road, a plate or even a chip. Mensuration and its basic concepts are taught in a very easy and interesting manner in Vedantu. The illustrations of the chapter given in RD Sharma are also vast which would help children in clearing their doubts. RD Sharma solution for all classes is available for free at Vedantu. 

4. What topics of Mensuration is important for class 6 students?

Mensuration is an important chapter of class 6 Mathematics. The whole chapter is quite important for a student who aims to score good marks in their examination. Mensuration is a chapter of mathematics that deals with the measurement and proportions of length, volume or area of various 2D and 3D shapes. To learn about Mensuration in detail, visit Vedantu and take a step ahead in scoring good marks.

5. Where can I find the RD Sharma Solutions for Class 6 Maths Chapter 20 - Mensuration - Free PDF Download?

As we have told you, Vedantu is a one-stop-destination where you can find everything right from problems to solutions. RD Sharma Solutions are available for free at every class at Vedantu. The solutions are made by the expert team while keeping in view the updated syllabus and prescribed guidelines issued by the CBSE Board. First of all, students should try solving the questions on their own and when they get stuck, click on the RD Sharma solution for class 6 Chapter 20 Mensuration to clear all your queries.