## NCERT Solutions for Class 9 Maths Chapter 13 (Ex 13.6)

NCERT Solutions for Class 9 Maths Chapter 13: Surface Areas and Volumes - Exercise 13.6

## FAQs on NCERT Solutions for Class 9 Maths Chapter 13: Surface Areas and Volumes - Exercise 13.6

1. What is a combination of solids?

Combination of solids consists of 2 sections in it. They are:

**Surface Area of a Combination of Solids**

In NCERT Class 9 Maths, you will learn how to break down a solid and analyse its shape in an easy way. You can find the areas of the unknown shapes with known shapes.

**The Volume of Combined Solids**

In this segment of NCERT Solutions for Class 9 Maths, you will be learning how to find the volumes of complex objects with visualising in a simplified way of shapes.

The volume of combined solids

V(solid) = V(Cone) + V(hemisphere)

2. How many questions are there in this exercise?

This exercise of NCERT Class 9 Maths book consists of 9 questions. Question 1 is based on the cube, where you will have to find the surface area of it. Question 2, 3, 4, 5, 6 and 9 are hemisphere based questions. In which you will have to find the surface area of the given shape. Question 7 is based on the cylinder, in which you have to find the area of the canvas. Question 8 is asked from the solid cylinder, where you will be finding the surface area of the solid.

3. What will I learn in the cuboid and surface area?

In this part of NCERT Solutions for Class 9 Maths Chapter 13, you will be taught how to find out the surface area of a cuboid. You will also understand how it is equal to the sum of the areas of its six rectangular faces.

cuboid = 2(l×b)+2(b×h)+2(l×h)=2(lb+bh+lh)

You will also learn about the cube and its surface area, cylinder and its surface area, right circular cone and its surface area and sphere and it’s surface area.

Volume of Cube

Here, you will learn that all the dimensions of the cube are identical, Volume = l3

Here, l will be the length of the cube of the edge

The volume of a cube = base area×height

4. How do I increase my ranks with Vedantu’s study guide?

You can improve your grades with our help. We at Vedantu have a team of experts who understand the academic needs and requirements of students. The study material provided by Vedantu is crafted as per the latest syllabus and is made available to everybody through our online portal.

Our solutions and study guide are designed by our subject-matter experts in a step by step way for easy and better understanding of the concept. We made sure that CBSE and NCERT guidelines are strictly followed while drafting these solutions. All the topics are explained in detail to make it more clear for you.

5. Which is more difficult, Surface Area and Volumes or Geometry?

It is quite a tough question as not all will find difficulty in Surface Area and Volumes and not all will find difficulty in Geometry. It is basically up to you. However, for most students, Geometry is quite difficult as it has figures, measurements, derivations, and more, which are not easy in comparison to Surface Area and Volumes, which have the necessary formulas for solving. But, it is all in the mind. Practice will make you an expert in both topics.

6. What is the minimum number of hours required to study for Class 9 Chapter 13 Maths?

The minimum number of hours required to study for Class 9 Maths Chapter 13 varies amongst students. But on average, if you are preparing for Class 9 Maths Chapter 13 then you should study for at least three hours a day and then do the revision again. However, you shouldn’t try to do it at a stretch and take breaks in between.

7. Does Chapter 13 matter in Class 10 Maths?

Yes, it does matter. This chapter forms a base, and it is important to be thorough here as it continues even till Class 12. To know more about the chapter, you can visit Vedantu. The solutions are created by experts and are completely free.

8. How can I top in Class 9 Maths Chapter 13 during the class test?

To top in Class 9 Chapter 13 Maths you have to follow some easy tips which include proper concentration. Place your mind towards one question and don’t waste your time looking around other questions. Practice your coursebook questions one by one, when you think you have completed them, pick up the sample papers of the past year’s and see if you can find questions from Chapter 13. You can check NCERT Solutions for Class 9 Maths free of cost for further knowledge. These solutions are available free of cost on Vedantu’s website(vedantu.com) and mobile app.

9. How many questions are there in Chapter 13 Exercise 13.6 of Class 9 Maths?

In Chapter 13 Exercise 13.6 of Class 9 Maths, there are only eight questions, however, these eight questions are long and are difficult too. These questions can be solved by applying the formulas of the geometrical objects. In some of the questions, there are diagrams also, and you have to solve the questions by seeing the dimensions from the diagrams given.