RS Aggarwal Solutions Class 8 Chapter-20 Volume and Surface Area of Solids (Ex 20A) Exercise 20.1

The RS Aggarwal Class 8 Ex 20A has all the information needed to solve the questions and will help you very much at the time of your examination. If the PDF of the RS Aggarwal Class 8 20A solution is downloaded, It will be available to you all the time and can come in handy whenever you want to revise the topic. For all the students who want to excel in the examination, the solutions can be of great help. The important points and the formulae are listed very precisely and clearly. Our PDF solutions help students to assess their understanding of the topic better.

RS Aggarwal Class 8 Exercise 20A Solution

Chapter - Surface Area and Volume

The Surface Area and Volume Class 8 will cover the concepts of how to find the Volume and Surface Areas of certain solids. All the formulae related to the cube, cuboid, cylinder, cone, etc., are mentioned and the perfect examples illustrating these formulae are provided in a detailed manner. The main focus is on the Volume, lateral Surface Area, and total Surface Area. The application of using these formulae and finding the required elements is explained beautifully by our subject experts in the Surface Area and Volume Class 8.

Why is RS Aggarwal Class 8 Chapter 20 Important?

• The PDF covers all the important formulae of the questions asked in the exam.

• Important points and topics are explained easily.

• The concepts are very well explained by the subject matter experts which will make understanding effortless.

• The PDF can be downloaded easily and this will make the article very handy for last-minute revision.

• The important questions are prioritized and listed in this article.

• Our solutions come with Chapter-wise strategies for students to prepare for exams.

• Practising RS Aggarwal Class 8 Exercise 20A Solution will help you build conceptual knowledge about the subject.

About the Chapter

This Chapter is primarily concerned with the Volumes and Surface Areas of a cuboid and a cube. Some applications of these formulae to simple problems from everyday life will be discussed as well. Students who are having difficulty solving problems can use RS Aggarwal Class 8. Our expert faculty team creates solutions with the utmost care to ensure that students understand the concepts clearly. Students can use the RD Sharma textbook as a reference source when studying for their board exams. This Chapter's solutions are available in PDF format and can be downloaded from the links provided below.

Volumes and Surface Areas of a Cuboid and a Cube Chapter 20 contains four exercises, and the RS Aggarwal Class 8 Solutions on this page provide answers to the questions in each exercise. Let's take a look at the concepts covered in this Chapter.

• Cuboid.

• Regions of space.

• The Volume of a body-formed space region.

• A Volume unit that is universally accepted.

• The formula for calculating a cuboid's Volume.

• A cube's Volume is its Volume.

• Other Volume units are commonly used.

• A cuboid's and a cube's Surface Areas

• The Surface Area of a room's walls.

• Problems of various kinds.

Any three-dimensional geometrical shape's Surface Area and Volume are calculated. The Surface Area of a given object is the Area or region occupied by the object's Surface. Volume, on the other hand, is the amount of space available in an object.

There are various shapes and sizes in geometry, such as the sphere, cube, cuboid, cone, cylinder, and so on. Each shape has both a Surface Area and a Volume. However, in the case of two-dimensional figures such as squares, circles, rectangles, triangles, and so on, we can only measure the Area covered by these figures and no Volume is available. Let us now look at the Surface Area and Volume formulas for various 3D shapes.

What Exactly is Surface Area?

The Area is the space occupied by a two-dimensional flat Surface. It is expressed in square units. Surface Area refers to the Area occupied by a three-dimensional object's outer Surface. It's also expressed in square units.

In General, There are Two Kinds of Areas:

1. Surface Area Total

2. Curved Surface Area/Lateral Surface Area

Surface Area Total

The total Surface Area includes the base(s) and the curved portion. It is the total Area covered by the object's Surface. If the shape has a curved Surface and a flat base, the total Area is the sum of the two Areas.

The Surface Area that is Curved

The Area of only the curved part of the shape, excluding its base, is referred to as the curved Surface Area (s). For shapes such as a cylinder, it is also known as lateral Surface Area.

What Exactly is Volume?

Volume is the amount of space that an object or substance takes up, measured in cubic units. Two-dimensional objects lack Volume and instead focus on the Area. The Volume of a circle, for example, cannot be found, but the Volume of a sphere can. Because a sphere is a three-dimensional shape, this is true.

RS Aggarwal Solutions Class 8 Ex 20A Chapterwise Weightage

RS Aggarwal Class 8 Exercise 20A solution is an important Chapter from the exam point of view. The formula of Volume of solids, LSA, and TSA of solids will be asked in the very short answer type format. There will be questions to solve for radius, the height of solids by giving some information about the solid in the short-answer type questions. The long answer type questions will have questions that will be application-based and involve real-time examples related to the formulae mentioned in the Chapter. We can expect 5-6 questions from RS Aggarwal Class 8 Chapter 20. The best way to improve your Maths score is to practice all these Class 8 RS Aggarwal Exercise 20A Questions daily.