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?

(i) No
(ii) Yes
(iii) Yes

#### Question 2. Which are prisms among the following?

Prisms are only (i) and (iv).

Visualising Solid Shapes Exe-17.2

### ML Aggarwal Class 8 ICSE Maths Solutions

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#### Question 4. Can a polyhedron have 15 faces, 30 edges and 20 vertices?

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.

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.

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.