
CBSE Important Questions›

CBSE Previous Year Question Papers›
 CBSE Previous Year Question Papers
 CBSE Previous Year Question Papers Class 12
 CBSE Previous Year Question Papers Class 10

CBSE Revision Notes›

CBSE Syllabus›

CBSE Extra Questions›

CBSE Sample Papers›
 CBSE Sample Papers
 CBSE Sample Question Papers For Class 5
 CBSE Sample Question Papers For Class 4
 CBSE Sample Question Papers For Class 3
 CBSE Sample Question Papers For Class 2
 CBSE Sample Question Papers For Class 1
 CBSE Sample Question Papers For Class 12
 CBSE Sample Question Papers For Class 11
 CBSE Sample Question Papers For Class 10
 CBSE Sample Question Papers For Class 9
 CBSE Sample Question Papers For Class 8
 CBSE Sample Question Papers For Class 7
 CBSE Sample Question Papers For Class 6

ISC & ICSE Syllabus›

ICSE Question Paper›
 ICSE Question Paper
 ISC Class 12 Question Paper
 ICSE Class 10 Question Paper

ICSE Sample Question Papers›
 ICSE Sample Question Papers
 ISC Sample Question Papers For Class 12
 ISC Sample Question Papers For Class 11
 ICSE Sample Question Papers For Class 10
 ICSE Sample Question Papers For Class 9
 ICSE Sample Question Papers For Class 8
 ICSE Sample Question Papers For Class 7
 ICSE Sample Question Papers For Class 6

ICSE Revision Notes›
 ICSE Revision Notes
 ICSE Class 9 Revision Notes
 ICSE Class 10 Revision Notes

ICSE Important Questions›

Maharashtra board›

RajasthanBoard›
 RajasthanBoard

Andhrapradesh Board›
 Andhrapradesh Board
 AP Board Sample Question Paper
 AP Board syllabus
 AP Board Previous Year Question Paper

Telangana Board›

Tamilnadu Board›

NCERT Solutions Class 12›
 NCERT Solutions Class 12
 NCERT Solutions Class 12 Economics
 NCERT Solutions Class 12 English
 NCERT Solutions Class 12 Hindi
 NCERT Solutions Class 12 Maths
 NCERT Solutions Class 12 Physics
 NCERT Solutions Class 12 Accountancy
 NCERT Solutions Class 12 Biology
 NCERT Solutions Class 12 Chemistry
 NCERT Solutions Class 12 Commerce

NCERT Solutions Class 10›

NCERT Solutions Class 11›
 NCERT Solutions Class 11
 NCERT Solutions Class 11 Statistics
 NCERT Solutions Class 11 Accountancy
 NCERT Solutions Class 11 Biology
 NCERT Solutions Class 11 Chemistry
 NCERT Solutions Class 11 Commerce
 NCERT Solutions Class 11 English
 NCERT Solutions Class 11 Hindi
 NCERT Solutions Class 11 Maths
 NCERT Solutions Class 11 Physics

NCERT Solutions Class 9›

NCERT Solutions Class 8›

NCERT Solutions Class 7›

NCERT Solutions Class 6›

NCERT Solutions Class 5›
 NCERT Solutions Class 5
 NCERT Solutions Class 5 EVS
 NCERT Solutions Class 5 English
 NCERT Solutions Class 5 Maths

NCERT Solutions Class 4›

NCERT Solutions Class 3›

NCERT Solutions Class 2›
 NCERT Solutions Class 2
 NCERT Solutions Class 2 Hindi
 NCERT Solutions Class 2 Maths
 NCERT Solutions Class 2 English

NCERT Solutions Class 1›
 NCERT Solutions Class 1
 NCERT Solutions Class 1 English
 NCERT Solutions Class 1 Hindi
 NCERT Solutions Class 1 Maths

JEE Main Question Papers›

JEE Main Syllabus›
 JEE Main Syllabus
 JEE Main Chemistry Syllabus
 JEE Main Maths Syllabus
 JEE Main Physics Syllabus

JEE Main Questions›
 JEE Main Questions
 JEE Main Maths Questions
 JEE Main Physics Questions
 JEE Main Chemistry Questions

JEE Main Mock Test›
 JEE Main Mock Test

JEE Main Revision Notes›
 JEE Main Revision Notes

JEE Main Sample Papers›
 JEE Main Sample Papers

JEE Advanced Question Papers›

JEE Advanced Syllabus›
 JEE Advanced Syllabus

JEE Advanced Mock Test›
 JEE Advanced Mock Test

JEE Advanced Questions›
 JEE Advanced Questions
 JEE Advanced Chemistry Questions
 JEE Advanced Maths Questions
 JEE Advanced Physics Questions

JEE Advanced Sample Papers›
 JEE Advanced Sample Papers

NEET Eligibility Criteria›
 NEET Eligibility Criteria

NEET Question Papers›

NEET Sample Papers›
 NEET Sample Papers

NEET Syllabus›

NEET Mock Test›
 NEET Mock Test

NCERT Books Class 9›
 NCERT Books Class 9

NCERT Books Class 8›
 NCERT Books Class 8

NCERT Books Class 7›
 NCERT Books Class 7

NCERT Books Class 6›
 NCERT Books Class 6

NCERT Books Class 5›
 NCERT Books Class 5

NCERT Books Class 4›
 NCERT Books Class 4

NCERT Books Class 3›
 NCERT Books Class 3

NCERT Books Class 2›
 NCERT Books Class 2

NCERT Books Class 1›
 NCERT Books Class 1

NCERT Books Class 12›
 NCERT Books Class 12

NCERT Books Class 11›
 NCERT Books Class 11

NCERT Books Class 10›
 NCERT Books Class 10

Chemistry Full Forms›
 Chemistry Full Forms

Biology Full Forms›
 Biology Full Forms

Physics Full Forms›
 Physics Full Forms

Educational Full Form›
 Educational Full Form

Examination Full Forms›
 Examination Full Forms

Algebra Formulas›
 Algebra Formulas

Chemistry Formulas›
 Chemistry Formulas

Geometry Formulas›
 Geometry Formulas

Math Formulas›
 Math Formulas

Physics Formulas›
 Physics Formulas

Trigonometry Formulas›
 Trigonometry Formulas

CUET Admit Card›
 CUET Admit Card

CUET Application Form›
 CUET Application Form

CUET Counselling›
 CUET Counselling

CUET Cutoff›
 CUET Cutoff

CUET Previous Year Question Papers›
 CUET Previous Year Question Papers

CUET Results›
 CUET Results

CUET Sample Papers›
 CUET Sample Papers

CUET Syllabus›
 CUET Syllabus

CUET Eligibility Criteria›
 CUET Eligibility Criteria

CUET Exam Centers›
 CUET Exam Centers

CUET Exam Dates›
 CUET Exam Dates

CUET Exam Pattern›
 CUET Exam Pattern
CBSE Class 8 Mathematics Revision Notes Chapter 11 – Mensuration
In these Class 8 Mathematics Chapter 11 Notes, students will learn about Mensuration. In addition, in these Class 8 Mathematics Chapter 11 Notes, students will get to know the important details of the chapter that are essential for their final examination. Along with Class 8 Mathematics Chapter 11 Notes, Extramarks will provide students with essential questions for quick and instant preparation. Moreover, Class 8 Mathematics Chapter 11 Notes will be a student’s lastminute revision guide, providing all the necessary information. These notes are based on the CBSE Syllabus.
Perimeter: The length of a simply closed figure boundary is its perimeter.
Rectangle = 2(l+b)
Square = 4a
Parallelogram = 2 (Sum of adjacent sides)
 Area: The size of territory encompassed by a straightforward closed figure is known as its area.
 A trapezium’s area is determined by dividing the sum of the lengths of its parallel sides by the perpendicular distance between them.
Area of a rhombus = 12 the product of its diagonals.
Triangle = 12 × base × height
Diagonal of:
Rectangle = l²+b²
Square = 2a
The total of a solid’s face areas makes up its surface area.
Surface area of cuboid = 2(lb+bh+lh)
Surface area of cube = 6l²
Surface area of a cylinder = 2r(r+h)
The volume of a solid will be the amount of space it takes up.
The volume of:
A cuboid = lbh
A cube = l³
A cylinder = r²h
A few basic measurements are as follows.
 1cm³=1mL
 1L=1000cm³
 1m³=1000000cm³
= 1000L
Revision Notes For CBSE Class 8 Mathematics Chapter 11 – Free PDF Download
Access Class 8 Mathematics Chapter 11 – Mensuration Notes
Download Mathematics Class 8 Mensuration Notes – Free PDF
Extramarks is a platform where students can get free Revision Notes for Class 8 Mathematics Chapter 11 and other study materials. Students can easily download these Class 8 Chapter 11 Notes and use them as future references for their ease. If you use the Mensuration Class 8 Chapter 11 NCERT Solutions and the Mensuration Class 8 Notes provided by Extramarks, studying Class 8 Chapter 11 will become much simpler for you.
Extramarks’ Mathematics Class 8 Mensuration Notes are crucial for aspiring students who want to excel in their classes and get good grades. You can prepare for your upcoming Class 8 examination and other competitive exams like the Olympiad by using these revision notes for Class 8 Mathematics Chapter 11. In addition, to learn about various shortcut methods that assist you in solving numerical problems stepbystep, choose online Mathematics Class 8 Mensuration Notes.
With just one click on the PDF link below, you can download the revision notes for Class 8 Mathematics Chapter 11 in its entirety and access them whenever and wherever you like. By mastering the revision notes for Chapter 11 Mensuration, you can understand the types of questions and the amount of time needed to solve them. These notes will help you perform well on your test and understand the chapter better. A Quick Glimpse Of Class 8 Chapter 11 Mensuration
You will be introduced to various geometrical figures and their parameters in these Chapter 11 Mensuration Notes. These parameters include perimeter, area, surface area, length, volume, lateral surface area, etc. You must have learned in your previous classes that a closed figure’s area is the area it covers, and the perimeter of a closed figure is the distance around its boundary. You should be able to calculate the areas and perimeters of various plane figures, such as circles, triangles, and rectangles. Additionally, you must be familiar with the formulas used to determine the area of borders or pathways in a rectangular shape.
In this chapter on measurement, you will learn how to calculate the area and perimeter of other closed figures, such as quadrilaterals. You will learn how to determine the surface area and volume of solids like cylinders, cuboids, and cubes.
Students should be familiar with the key formulas and concepts to successfully complete the numerical questions related to mensuration in their CBSE Class 8 exams.
These notes contain all the topics in the NCERT books concisely. Download the Class 8 Mathematics Chapter 11 Notes on this page to improve your exam results. Once you go through these notes, you can easily solve CBSE sample papers to test your understanding. These notes also contain CBSE extra questions that will further help the students in assessing themselves.
Topics And Subtopics Covered In Chapter 11 Mensuration
Here are the topics and subtopics covered in Chapter 11 – Mensuration.
Mensuration Important Formulas
Some essential mensuration formulas are discussed below.
 Area of Trapezium:
12 of the sum of the length of parallel sides * Perpendicular distance between them
 Surface Area of Cuboid: 2 (LB + BH + HL) or 2 (Length * Breadth + Breadth * Height + Length * Height )
 Surface Area of Cube: 6 * Side²
 Surface Area of Cylinder: 2πr( Radius + Height)
 Volume of Cuboid: LBH or (Length * Breadth * Height)
 Volume of Cube: Side³
 Volume of Cylinder: r²h
In the above formula
H = Height of cylinder
Download our Class 8 Mathematics Revision Notes Chapter 11 PDF for free to get a detailed view of this chapter.
Key Highlights of CBSE Class 8 Mathematics Revision Notes Chapter 11
Here are some of the major points of the CBSE Class 8 Mathematics Revision Notes Chapter 11:
 By using these CBSE Revision Notes, students can easily understand, apply, and revise all the key ideas in Chapter 11.
 The revision notes provide clear and concise definitions of the important topics covered.
 Understanding all the key ideas and formulas from the chapter, which are presented in the right order in the Mathematics Class 8 Mensuration Notes, will save you a great deal of time.
 These mensuration notes for Class 8 Mathematics from Extramarks include many significant suggestions for successfully solving mensuration numerical problems.
 Extramarks’ subject specialists create these notes in a tidy and organised manner that makes them appealing and easy for students to learn.
These CBSE Revision Notes are made according to the CBSE Syllabus. The questions in these notes are based on CBSE Past Years’ Question Papers. In addition, these notes contain Important Questions and Formulas to help students achieve better marks in their examinations.
FAQs (Frequently Asked Questions)
1. What do you mean by mensuration?
The practice of measuring the area and perimeter of different shapes is known as mensuration. The shapes include triangles, rectangles, trapeziums, squares, etc.
2. Calculate the height of a cuboid with a base area of 180 cm² and a volume of 900 cm³.
The volume of cuboid = base area × height
900 = 180 × height
So, height = 900180 = 5 cm
3. The area of a rhombus is 16 cm², and the length of one of its diagonals is 4 cm. Calculate the length of the other diagonal.
Area of rhombus = 12 × d1 × d2
⇒ 16 = 12 × 4 × d2
So, d2 = 324 = 8 cm
4. The parallel sides of a trapezium is 12 cm and 20 cm. Find out its area if the distance between the parallel lines is 15 cm.
Area of trapezium = 12 × perpendicular distance between parallel sides × sum of parallel sides
= 12 × 15 × (12 + 20)
= 12 × 15 × 32
= 15 × 16
= 240 cm²
5. The ratio of the length and breadth of a rectangle is 4 : 3. If its perimeter is 154 cm, find its length and breadth.
Let the length of the rectangle be 4x cm and that of breadth = 3x cm
Perimeter = 2(l + b) = 2(4x + 3x) = 2 × 7x = 14x cm
14x = 154
x = 11
Length = 4 × 11 = 44 cm
Breadth = 3 × 11 = 33 cm