CBSE Class 8 Maths Activity 12

Read and download CBSE Class 8 Maths Activity 12 in NCERT book for Class 8 Mathematics. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Mathematics textbook for Class 8 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 8 Mathematics to understand the answers of the exercise questions given at the end of this chapter

NCERT Book for Class 8 Mathematics Activity 12

Class 8 Mathematics students should refer to the following NCERT Book Activity 12 in Class 8. This NCERT Book for Class 8 Mathematics will be very useful for exams and help you to score good marks

Activity 12 NCERT Book Class 8

 

To make cuboids and cubes of given dimensions (4 x 3 x 2, 3 x 3 x 3) using unit cubes and to calculate the volume of each .

Learning Objective : To establish formulae for finding volumes of a cuboid and a cube.

Pre-requisite :Knowledge of volume.

Materials Required : Unit cubes.

Procedure :   For cuboid (4 x 3 x 2)

Step 1. Take four unit cubes and join them to make a row. [Fig. 12(a)]

Step 2. Make three such rows as in Step 1 and join them as shown in. Fig. 12(b)

Step 3. Make one more solid of the type as given in Fig. 12(b) using unit cubes and place it over the solid formed in Fig. 12(b). [See Fig. 12(c)].  Find the volume of the cuboid in Fig. 12(c) by counting the number of unit cubes.

Step 4. Repeat the activity by

(i) Taking 3 cubes in a row.

(ii) Taking 3 rows of 3 cubes in each layer.

(iii) Taking 3 layers to get a cube of dimensions 3 x 3 x 3 [ Fig. 12(d)].

Find the volume of the cube by counting the number of unit cubes.

Observation :
(i) Number of unit cubes used in the solid (cuboid) in Fig 12(c) = ............ Its volume = ...............cubic units.

(ii) Dimensions of this cuboid are 4 x 3 x ...........................

(iii) (Length x breath x height) of the cuboid = ......................... of the cuboid.

(iv) Number of unit cubes used in the solid (cube) in Fig. 12(d) = .................., Its volume = ......................... cubic units.

(v) Dimensions of this cube are 3 x .......... x 3.

(vi) Length x breath x height = length x length x length of the cube in Fig. 12(d) = ................. of the cube.

Please refer to the link below - CBSE Class 8 Maths Activity 12

Chapter 01 Rational Numbers
NCERT Class 8 Maths Rational Numbers
Chapter 02 Linear Equations in One Variable
NCERT Class 8 Maths Linear Equations in One Variable
Chapter 03 Understanding Quadrilaterals
NCERT Class 8 Maths Understanding Quadrilaterals
Chapter 04 Practical Geometry
NCERT Class 8 Maths Practical Geometry
Chapter 05 Data Handling
NCERT Class 8 Maths Data Handling
Chapter 06 Squares and Square Roots
NCERT Class 8 Maths Squares and Square Roots
Chapter 07 Cubes and Cube Roots
NCERT Class 8 Maths Cubes and Cube Roots
Chapter 08 Comparing Quantities
NCERT Class 8 Maths Comparing Quantities
Chapter 09 Algebraic Expressions and Identities
NCERT Class 8 Maths Algebraic Expressions and Identities
Chapter 10 Visualising Solid Shapes
NCERT Class 8 Maths Visualising Solid Shapes
Chapter 11 Mensuration
NCERT Class 8 Maths Mensuration
Chapter 12 Exponents and Powers
NCERT Class 8 Maths Exponents and Powers
Chapter 13 Direct and Inverse Proportions
NCERT Class 8 Maths Direct and Inverse Proportions
Chapter 14 Factorisation
NCERT Class 8 Maths Factorisation
Chapter 15 Introduction to Graphs
NCERT Class 8 Maths Introduction to Graphs
Chapter 16 Playing with Numbers
NCERT Class 8 Maths Playing with Numbers

NCERT Book Class 8 Mathematics Activity 12

The above NCERT Books for Class 8 Mathematics Activity 12 have been published by NCERT for latest academic session. The textbook by NCERT for Activity 12 Mathematics Class 8 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Activity 12 NCERT etextbooks as the exams for Class 8 Mathematics are always asked as per the syllabus defined in these ebooks. These Class 8 Activity 12 book for Mathematics also includes collection of question. Along with Mathematics Class 8 NCERT Book in Pdf for Activity 12 we have provided all NCERT Books in English Medium for Class 8 which will be really helpful for students who have opted for english language as a medium. Class 8 students will need their books in English so we have provided them here for all subjects in Class 8.

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