ML Aggarwal Visualising Solid Shapes Exe-17.2 Class 8 ICSE Ch-17 Maths Solutions. We Provide Step by Step Answer of Exe-17.2 Questions for Visualising Solid Shapes as council prescribe guideline for upcoming board exam. Visit official Website CISCE for detail information about ICSE Board Class-8.
ML Aggarwal Visualising Solid Shapes Exe-17.2 Class 8 ICSE Maths Solutions
| Board | ICSE |
| Publications | Avichal Publishig Company (APC) |
| Subject | Maths |
| Class | 8th |
| Chapter-17 | Visualising Solid Shapes |
| Writer | ML Aggarwal |
| Book Name | Understanding |
| Topics | Solution of Exe-17.2 Questions |
| Edition | 2023-2024 |
Visualising Solid Shapes Exe-17.2
ML Aggarwal Class 8 ICSE Maths Solutions
Page-285
Question 1. Can a polyhedron have for its faces
(i) 3 triangles?
(ii) 4 triangles?
(iii) a square and four triangles?
Answer:
(i) No
(ii) Yes
(iii) Yes
Question 2. Which are prisms among the following?
Answer:
Prisms are only (i) and (iv).
Visualising Solid Shapes Exe-17.2
ML Aggarwal Class 8 ICSE Maths Solutions
Page-2856
Question 3. Verify Euler’s formula for these solids:
Answer:
Question 4. Can a polyhedron have 15 faces, 30 edges and 20 vertices?
Answer:
Can a polyhedron have 15 faces, 30 edges and 20 vertices.
∵ F + V = E + 2
⇒ 15 + 20 = 35 and 30 + 2 = 32
∵ 35 ≠ 32
∴ It has not.
Question 5. If a polyhedron has 8 faces and 8 vertices, find the number of edges.
Answer:
A polyhedron has 8 faces and 8 vertices.
∴ Number of edges = F + V – 2 = 8 + 8 – 2 = 14
Question 6. If a polyhedron has 7 faces and 10 vertices, find the number of edges.
Answer:
A polyhedron has 7 faces and 10 vertices.
∴ Number of edges = F + V – 2 = 7 + 10 – 2 = 15
Question 7. Write the number of faces, vertices and edges in
(i) an octagonal prism
(ii) decagonal pyramid.
Answer:
Question 8. Using Euler’s formula, complete the following table:
Answer:
— End of Visualising Solid Shapes Exe-17.2 Class 8 ICSE Maths Solutions :–
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