## ML Aggarwal Class 8 Solutions for ICSE Maths Chapter 17 Visualising Solid Shapes Check Your Progress

Question 1.

Write the number of faces, vertices and edges of a

(i) hexagonal pyramid

(ii) octagonal pyramid

(iii) decagonal pyramid

(iv) nonagonal pyramid

(v) heptagonal prism

(vi) decagonal prism.

Solution:

Question 2.

Give three examples of 3-dimensional shapes around you which are the combinations of 2 or more 3-dimensional shapes.

Solution:

Question 3.

Give two examples of solids which are not polyhedrons.

Solution:

Question 4.

Why a pentagonal pyramid having all its edges congruent cannot be a regular polyhedron?

Solution:

Question 5.

In a polyhedron, if F = 8 and V = 12 then find the number of edges.

Solution:

Question 6.

Verify Euler’s formula for the following figures:

Solution:

Question 7.

For each of the given solid, the three views are given. Identify for each solid the corresponding top, front and side views:

Solution: