Are you looking for NCERT Solutions for Class 8 Maths Chapter 11 Mensuration? You have come to the right place as at askIITians you will find updated NCERT Solutions for Class 8 Maths all chapters. Chapter 11 Mensuration includes various important concepts such as finding the area of trapezium, general quadrilateral, and polygon. It also teaches you about solid shapes like cuboid, cube, cone, pyramid, and cylinder.
Our NCERT Class 8 Maths Chapter 11 Solutions help you understand how to find the surface area and volume of a cube, cuboid, and cylinder. There are 4 exercises in this chapter and a total of 34 questions. Our Maths experts have provided step by step solutions for all the exercise questions of the Mensuration chapter that will solidify your conceptual understanding of the chapter. These solutions are self-explanatory and help you practice all the questions of the chapter at your own pace. Download our NCERT Class 8 Maths Solutions for Chapter 11 and kickstart your learning.
This chapter begins with a revision of finding areas of different shapes such as rectangles, squares, circles, triangles, and parallelograms. Then it introduces you to the formula for finding the area of a trapezium, area of a general quadrilateral, and area of a polygon. Then, it introduces you to solid shapes like cuboid, cube, cone, cylinder and pyramid. You learn how to find the surface area and volume of all these solid shapes. Here are a few important points that you must take note of before you solve the NCERT exercises of Class 8 Maths Chapter 11 Mensuration:
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Surface Area of Different Shapes |
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Rectangle |
a x b, where a is the length of the rectangle and b is the breadth of the rectangle |
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Square |
a x a, where a is the length of one side of the square |
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Triangle |
½ x b x h, where b is the length of the base and h is the height of the triangle |
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Circle |
πr2 , where r is the radius of the circle |
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Parallelogram |
b x h, where b is the breadth and h is the height of the parallelogram |
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Surface Area of Different Solids |
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Cube |
6l2, where l is the length of one side of the cube |
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Cuboid |
2(lb + bh + hl), where l is the length, b is the breadth and h is the height of the cuboid |
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Cylinder |
2πr(r + h), where r is the radius and h is the height of the cube |
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Volume of Different Solids |
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Cube |
l 3 |
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Cuboid |
l x b x h |
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Cylinder |
πr2h |
If you want to score full marks in this chapter, just remember the formulae for finding the surface area and volume of different solids. You must also practise how to apply these formulae in the right situation. This way you can solve any problem in the exam related to mensuration. Given below are the links through which you can download all the NCERT Class 8 Maths Solutions for Chapter 11 Mensuration:
NCERT Class 8 Maths Chapter 11 Ex 11.1 Solutions - 5 Questions
NCERT Class 8 Maths Chapter 11 Ex 11.2 Solutions - 11 Questions
NCERT Class 8 Maths Chapter 11 Ex 11.3 Solutions - 10 Questions
NCERT Class 8 Maths Chapter 11 Ex 11.4 Solutions - 8 Questions
NCERT Class 8 Maths Chapter 11 Ex 11.1 Solutions
The first exercise of Class 8 Maths Chapter 11 helps you revise the basics of finding areas of simple shapes like rectangle, square, triangle, parallelogram, etc. There are 5 questions in this exercise and all of them are quite interesting. For instance, in question 5, you are given different shapes and you have to find their surface area by applying the formulae of areas of simple shapes. Don’t worry, if you cannot understand such questions, our free NCERT Solutions are here to help you.
NCERT Class 8 Maths Chapter 11 Ex 11.2 Solutions
The second exercise of the Mensuration chapter in Class 8 Maths is about finding the area of a trapezium, general quadrilateral, and polygon. There is no specific formula for finding the area of these figures, you need to divide the main shape into different simple shapes and find the surface area. Our Maths experts have provided stepwise solutions to all 11 questions of this exercise. We have based our solutions on the latest CBSE syllabus and exam pattern.
NCERT Class 8 Maths Chapter 11 Ex 11.3 Solutions
The third exercise of this chapter is based on finding the surface area of a cube, cuboid, and cylinder. There are 10 questions in this exercise and you must solve all of them to practice the concepts of the surface area of solids. Since all the questions are word problems, you must read them carefully and take note of all the information given to them.
NCERT Class 8 Maths Chapter 11 Ex 11.4 Solutions
The last exercise of this chapter is based on finding the volume of solids like cubes, cuboids and cylinders. You will also learn how volume and capacity are related to each other. There are 8 questions in this exercise that will help you solidify your concepts. Our experts have made sure that you understand how to approach the questions of this exercise in our NCERT Solutions for Class 8 Maths Mensuration.
Wait no more and download our NCERT Class 8 Maths Solutions for Chapter 11 immediately for your exam preparation.
The knowledge of surface area and volume of different shapes is necessary in the fields of engineering, design, construction, and architecture. The essential properties of solids help engineers create models, solve problems in real-life situations and more.
Yes, all the four exercises of Class 8 Maths NCERT Chapter 11 Mensuration are important from the exam perspective. You must practice them all to master the concept of finding surface area and volume of different solids.
askIITians provides various study resources that can help you master the Mensuration chapter and its formula. We provide flashcards, mind maps, practice worksheets, sample papers, and extra questions for Class 8 Maths Chapter 11 Mensuration. You can also enrol in our onlin, live, interactive classes and study this chapter from our experts.