# NCERT Class 8 Mathematics Solutions: Chapter 10 – Visualising Solid Shapes Exercise 10.3 Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 4**:

(i) How are prisms and cylinders alike?

(ii) How are pyramids and cones alike?

**Answer**:

(i) A cylinder can be thought of as a circular prism, i.e.. a prism that has a circle as its base.

(ii) A cone can be thought of as a circular pyramid i.e.. a pyramid that has a circle as its base.

**Question 5**:

Is a square prism same as a cube? Explain.

**Answer**:

A square prism has a square as its base. However, its height is not necessarily same as the side of square. Thus, a square prism can also be cuboid.

**Question 6**:

Verity Euler՚s formula for these solids.

**Answer**:

(i) Figure contains 7 faces, 10 vertices and 15 edges.

Using Euler՚s formula, we see

Putting

(ii) Figure contains 9 faces, 9 vertices and 16 edges.

Using Euler՚s formula, we see .