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Chapters
1: Rational Numbers
2: Exponents
3: Squares and Square Root
4: Cubes and Cube Roots
5: Playing with Numbers
6: Sets
Theme 2: Ratio and Proportion
7: Percent and Percentage
8: Profit, Loss and Discount
9: Interest
10: Direct and Inverse Variations
Theme 3: Algebra
11: Algebraic Expressions
12: Identities
13: Factorisation
14: Linear Equations in one Variable
15: Linear Inequations
Theme 4: Geometry
16: Understanding Shapes
17: Special Types of Quadrilaterals
18: Constructions
▶ 19: Representing 3-D in 2-D
Chapter 20: Symmetry
Chapter 21: Circles
Theme 5: Mensuration
22: Area of a Trapezium and a Polygon
23: Surface Area, Volume and Capacity
Theme 6: Data Handling (Statistics)
24: Data Handling
25: Probability
![Selina solutions for कन्साइस माठेमटिक्स [इंग्रजी] इयत्ता १० आईसीएसई chapter 19 - Representing 3-D in 2-D - Shaalaa.com](/images/concise-mathematics-english-class-8-icse_6:089566fb39ee4ae6ad4a651935ba6927.jpg "Selina solutions for कन्साइस माठेमटिक्स [इंग्रजी] इयत्ता १० आईसीएसई chapter 19 - Representing 3-D in 2-D")
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Solutions for Chapter 19: Representing 3-D in 2-D
Below listed, you can find solutions for Chapter 19 of CISCE Selina for कन्साइस माठेमटिक्स [इंग्रजी] इयत्ता १० आईसीएसई.
Selina solutions for कन्साइस माठेमटिक्स [इंग्रजी] इयत्ता १० आईसीएसई 19 Representing 3-D in 2-D Exercise 19 [Page 220]
If a polyhedron has 10 faces and 8 vertices, find the number of edges in it.
If a polyhedron has 10 vertices and 7 faces, find the number of edges in it.
State, the number of faces, number of vertices and number of edges of:
(i) a pentagonal pyramid
(ii) a hexagonal prism
Verify Euler’s formula for the following three-dimensional figures:
Can a polyhedron have 8 faces, 26 edges, and 16 vertices?
Can a polyhedron have:
(i) 3 triangles only?
(ii) 4 triangles only?
(iii) a square and four triangles?
Using Euler's formula, find the values of x, y, z.
| Faces | Vertices | Edges | |
| (i) | x | 15 | 20 |
| (ii) | 6 | y | 8 |
| (iii) | 14 | 26 | z |
What is the least number of planes that can enclose a solid? What is the name of the solid?
Is a square prism the same as a cube?
The Dimension of a cubical is 6 cm x 4 cm x 2 cm. Draw two different nets of it.
Dice are cubes where the sum of the numbers on the opposite faces is 7. Find the missing numbers a, b and c.
Name the polyhedron that can be made by folding each of the following nets:
(i)
(ii)
(iii)
Draw nets for the following polyhedrons:
Solutions for 19: Representing 3-D in 2-D
Selina solutions for कन्साइस माठेमटिक्स [इंग्रजी] इयत्ता १० आईसीएसई chapter 19 - Representing 3-D in 2-D
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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 कन्साइस माठेमटिक्स [इंग्रजी] इयत्ता १० आईसीएसई chapter 19 Representing 3-D in 2-D are 2dimensional Perspective of 3dimensional Objects, Concept of Polyhedron, Euler's Formula, Nets of 3D Figures, Faces, Edges and Vertices of Polyhedron, Concept of Polyhedron, 2dimensional Perspective of 3dimensional Objects, Concept of Polyhedron, Euler's Formula, Nets of 3D Figures, Faces, Edges and Vertices of Polyhedron, Concept of Polyhedron.
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