CBSE NCERT Class 9 Maths Chapter 13 Exercise 13.4 Solutions

The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.

A day full of math games & activities. Find one near you.

NCERT Solutions Class 9 Maths Chapter 13 Exercise 13.4 Surface Areas and Volumes

The NCERT Solutions for Class 9 maths Chapter 13 exercise 13.4 Surface Areas and Volumes sheds light on the concept of the surface area of a sphere. It starts with the explanation of a circle and how a circle in three-dimension can get evolved into a sphere with the help of a circular paper and string activity.

The students will find a sphere to be similar to the surface of a ball. How the formula for calculating the curved surface area of the right circular cone is obtained is derived step by step so as to explain the topic clearly. The Class 9 maths NCERT solutions Chapter 13 exercise 13.4 consists of 8 questions; 7 are easy, while 1 might require some time to solve. The NCERT solutions Class 9 maths Chapter 13 exercise 13.4 questions can be accessed by the link below:

☛ Download NCERT Solutions Class 9 Maths Chapter 13 Exercise 13.4

Exercise 13.4 Class 9 Chapter 13

$NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 36$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 37$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 38$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 39$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 40$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 41$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 42$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 43$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 44$ $NCERT Solutions Class 9 Math Chapter 13 Exercise 13.4 45$

More Exercises in Class 9 Maths Chapter 13

NCERT Solutions Class 9 Maths Chapter 13 Exercise 13.4 Formulas

The formulas covered in the NCERT solutions Class 9 maths Chapter 13 exercise 13.4 Surface Areas And Volumes are given below:

Surface Area of a Sphere = 4 π r ²
Curved Surface Area of a Hemisphere = 2πr²
Total Surface Area of a Hemisphere = 3πr²

Download Cuemath NCERT Solutions PDFs for free and start learning!

Class 9 Maths NCERT Solutions Video Chapter 13 Exercise 13.4

NCERT Video Solutions for Class 9 Maths Chapter 13 Exercise 13.4
Chapter 13 Exercise 13.4 Question 1	Chapter 13 Exercise 13.4 Question 6
Chapter 13 Exercise 13.4 Question 2	Chapter 13 Exercise 13.4 Question 7
Chapter 13 Exercise 13.4 Question 3	Chapter 13 Exercise 13.4 Question 8
Chapter 13 Exercise 13.4 Question 4	Chapter 13 Exercise 13.4 Question 9
Chapter 13 Exercise 13.4 Question 5

Math worksheets and
visual curriculum