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Chapters
1: Number System (Including Estimation and Approximation)
2: Numbers in Indian and International Systems (With Comparison)
3: Natural Numbers and Whole Numbers (Including Number Line and Patterns)
4: Negative Numbers and Integers
5: Sets
6: Fractions
7: Decimal Fractions
8: Playing with Numbers (Including H.C.F. and L.C.M.)
Theme 2: Ratio, Proportion, and Arithmetic Problems
Chapter 9: Ratio and Proportion (Including Unitary Method)
10: Percent (Percentage)
11: Idea of Speed, Distance and Time
Theme 3: Algebra
12: Fundamental Concepts (With operations on Algebraic Expressions)
13: Framing Algebraic Expressions (Including Substitution and Linear Equations)
Theme 4: Geometry
14: Fundamental Concepts (Including Angles and their Properties)
15: Triangles (Including Types and Properties of Triangles)
16: Quadrilateral
17: Circles
Chapter 18: Symmetry
Chapter 19: Constructions
▶ 20: Recognition of Solids
Theme 5: Mensuration
21: Perimeter and Area of Plane Figures
Theme 6: Statistics
22: Data Handling (Including Mean and Median)
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Solutions for Chapter 20: Recognition of Solids
Below listed, you can find solutions for Chapter 20 of CISCE Selina for Concise Mathematics [English] Class 6 ICSE.
Selina solutions for Concise Mathematics [English] Class 6 ICSE 20 Recognition of Solids Exercise 31
Identify if the following net can be used to form a cube:

Yes
No
Identify if the following net can be used to form a cube:

Yes
No
Identify if the following net can be used to form a cube:

Yes
No
Identify if the following net can be used to form a cube:

Yes
No
Identify if the following net can be used to form a cube:

Yes
No
Draw at least three different nets for making a cube.
The dimensions of a cuboid are 6 cm, 4 cm and 3 cm. Draw two different types of oblique sketches for this cuboid.
Two cubes, each with 3 cm edge, are placed side by side to form a cuboid. For this cuboid, draw:
(i) an oblique sketch
(ii) an isometric sketch.
The figure, given below, shows shadows of some 3D object when seen under the lamp of an overhead projector:

A square
In this case, name the object.
The figure, given below, shows shadows of some 3D object when seen under the lamp of an overhead projector:

A rectangle
In this case, name the object.
The following figure, given below, shows shadows of some 3D object when seen under the lamp of an overhead projector:

The figure, given below, shows shadows of some 3D object when seen under the lamp of an overhead projector:

A triangle
In this case, name the object.
Look at the solids, drawn below, and fill the given chart.
(i)

Triangular pyramid
(ii)

Square pyramid

(iv)

Hexagonal
| Polyhedon | Faces(F) | Vertices(V) | Edges(E) | F - E + V |
| (a) Triangular pyramid | ||||
| (b) Square pyramid | ||||
| (c) Hexahedron | ||||
| (d) Hexagonal prism |
Dice are cubes with dots or dots on the face. Opposite faces of a die always have a total of seven on them.
In the given below net to make dice (cube), the numbers inserted in the square indicate the number of dots in it.

Insert suitable numbers in the blank so that numbers in opposite faces of the die have a total of seven dots.
Dice are cubes with dots or dots on the face. Opposite faces of a die always have a total of seven on them.
In the given below net to make dice (cube), the numbers inserted in the square indicate the number of dots in it.

Insert suitable numbers in the blank so that numbers in opposite faces of the die have a total of seven dots.
The following figure represent nets of some solid. Name the solid.

The following figure represent nets of some solid. Name the solid.

The following figure represent the nets of some solid. Name the solid

The following figure represent the nets of some solid. Name the solid

Using Euler’s formula, find the values of a, b, c and d.
| Faces | a | 5 | 20 | 6 |
| Vertices | 6 | b | 12 | d |
| Edges | 12 | 9 | c | 12 |
Using an isometric dot paper, draw: a cube with each edge 3 cm.
Using an isometric dot paper, draw: a cuboid measuring 5 cm x 4 cm x 3 cm.
Solutions for 20: Recognition of Solids
![Selina solutions for Concise Mathematics [English] Class 6 ICSE chapter 20 - Recognition of Solids Selina solutions for Concise Mathematics [English] Class 6 ICSE chapter 20 - Recognition of Solids - Shaalaa.com](/images/concise-mathematics-english-class-6-icse_6:813057cb796048c69cd40b29e06245dc.jpg)
Selina solutions for Concise Mathematics [English] Class 6 ICSE chapter 20 - Recognition of Solids
Shaalaa.com has the CISCE Mathematics Concise Mathematics [English] Class 6 ICSE CISCE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Selina solutions for Mathematics Concise Mathematics [English] Class 6 ICSE CISCE 20 (Recognition of Solids) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Selina textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Concise Mathematics [English] Class 6 ICSE chapter 20 Recognition of Solids are Identification of 3-d Shapes, Nets of 3D Figures, Faces, Edges and Vertices of Polyhedron, Oblique Sketches of 3D Shapes.
Using Selina Concise Mathematics [English] Class 6 ICSE solutions Recognition of Solids exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Selina Solutions are essential questions that can be asked in the final exam. Maximum CISCE Concise Mathematics [English] Class 6 ICSE students prefer Selina Textbook Solutions to score more in exams.
Get the free view of Chapter 20, Recognition of Solids Concise Mathematics [English] Class 6 ICSE additional questions for Mathematics Concise Mathematics [English] Class 6 ICSE CISCE, and you can use Shaalaa.com to keep it handy for your exam preparation.
