Hey, are you a class 9 Student and Looking for Ways to Download NCERT Solutions for Class 9 Maths chapter 13 Exercise 13.4? If Yes then you are at the right place.
Here we have listed Class 9 maths chapter 13 exercise 13.4 solutions in PDF that is prepared by Kota’s top IITian’s Faculties by keeping Simplicity in mind.
If you want to score high in your class 9 Maths Exam then it is very important for you to have a good knowledge of all the important topics, so to learn and practice those topics you can use eSaral NCERT Solutions.
In this article, we have listed NCERT Solutions for Class 9 Maths chapter 13 Exercise 13.4 that you can download to start your preparations anytime.
So, without wasting more time Let’s start.Download The PDF of NCERT Solutions for Class 9 Maths chapter 13 Exercise 13.4 "Surface Areas and Volumes"
So, that’s all from this article. I hope you enjoyed this post. If you found this article helpful then please share it with other students.
Q1. Find the surface area of a sphere of radius:
(i) $10.5 \mathrm{~cm}$
(ii) $5.6 \mathrm{~cm}$
(iii) $14 \mathrm{~cm}$
Q2. (i) Find the surface area of a sphere of diameter 14cm.
Q3. Find the total surface area of a hemisphere of radius $10 \mathrm{~cm} $. (Use $\pi=3.14$)
Q4. The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the ratio of surface areas of the balloon in the two cases.
Q5. A hemispherical bowl made of brass has inner diameter $10.5 \mathrm{~cm} $. Find the cost of tin-plating it on the inside at the rate of $\mathrm{Rs} 16$ per $100 \mathrm{~cm}^{2}$.
Q6. Find the radius of a sphere whose surface area is $154 \mathrm{~cm} ^ {2} $
Q7. The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
Q8. A hemispherical bowl is made of steel, $0.25 \mathrm{~cm} $ thick. The inner radius of the bowl is $5 \mathrm{~cm} $. find the outer curved surface area of the bowl.
Q9. A right circular cylinder just encloses a sphere of radius $\mathrm{r}$. Find
(i) Surface area of the sphere,
(ii) Curved surface area of the cylinder,
(iii) Ratio of the areas obtained in (i) and (ii).
Also Read,
NCERT Class 9 Maths Book Free PDF
NCERT Class 9 Maths Exemplar Free PDF
Complete Solutions for Class 9 Maths chapter 13 Free PDF
Class 9 Maths Chapter 12 Exercise 12.1 Free Solutions PDF
Class 9 Maths Chapter 12 Exercise 12.2 Free Solutions PDF
If you have any Confusion related to NCERT Solutions for Class 9 Maths chapter 13 Exercise 13.4 then feel free to ask in the comments section down below.
To watch Free Learning Videos on Class 9 by Kota’s top Faculties Install the eSaral App
Here we have listed Class 9 maths chapter 13 exercise 13.4 solutions in PDF that is prepared by Kota’s top IITian’s Faculties by keeping Simplicity in mind.
If you want to score high in your class 9 Maths Exam then it is very important for you to have a good knowledge of all the important topics, so to learn and practice those topics you can use eSaral NCERT Solutions.
In this article, we have listed NCERT Solutions for Class 9 Maths chapter 13 Exercise 13.4 that you can download to start your preparations anytime.
So, without wasting more time Let’s start.
Download The PDF of NCERT Solutions for Class 9 Maths chapter 13 Exercise 13.4 "Surface Areas and Volumes"
So, that’s all from this article. I hope you enjoyed this post. If you found this article helpful then please share it with other students.
All Questions of Chapter 13 Exercise 13.4
Once you complete the chapter 13 then you can revise Ex. 13.4 by solving following questions
Q1. Find the surface area of a sphere of radius:
(i) $10.5 \mathrm{~cm}$
(ii) $5.6 \mathrm{~cm}$
(iii) $14 \mathrm{~cm}$
Q2. (i) Find the surface area of a sphere of diameter 14cm.
Q3. Find the total surface area of a hemisphere of radius $10 \mathrm{~cm} $. (Use $\pi=3.14$)
Q4. The radius of a spherical balloon increases from 7 cm to 14 cm as air is being pumped into it. Find the ratio of surface areas of the balloon in the two cases.
Q5. A hemispherical bowl made of brass has inner diameter $10.5 \mathrm{~cm} $. Find the cost of tin-plating it on the inside at the rate of $\mathrm{Rs} 16$ per $100 \mathrm{~cm}^{2}$.
Q6. Find the radius of a sphere whose surface area is $154 \mathrm{~cm} ^ {2} $
Q7. The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
Q8. A hemispherical bowl is made of steel, $0.25 \mathrm{~cm} $ thick. The inner radius of the bowl is $5 \mathrm{~cm} $. find the outer curved surface area of the bowl.
Q9. A right circular cylinder just encloses a sphere of radius $\mathrm{r}$. Find
(i) Surface area of the sphere,
(ii) Curved surface area of the cylinder,
(iii) Ratio of the areas obtained in (i) and (ii).
Also Read,
NCERT Class 9 Maths Book Free PDF
NCERT Class 9 Maths Exemplar Free PDF
Complete Solutions for Class 9 Maths chapter 13 Free PDF
Class 9 Maths Chapter 12 Exercise 12.1 Free Solutions PDF
Class 9 Maths Chapter 12 Exercise 12.2 Free Solutions PDF
If you have any Confusion related to NCERT Solutions for Class 9 Maths chapter 13 Exercise 13.4 then feel free to ask in the comments section down below.
To watch Free Learning Videos on Class 9 by Kota’s top Faculties Install the eSaral App