RD Sharma Solutions for Class 8 Chapter 19 Visualising Shapes Exercise 19.2

RD Sharma Class 8 Solutions Chapter 19 Ex 19.2 PDF Free Download

Exercise 19.2 of Chapter 19, mainly deals with visualisation of 3-D shapes through nets. The problems are solved in a simple and precise manner by a set of expert faculty team at BYJU’S. The solutions are designed stepwise as per the marks allotted for each step in the exam pattern, so following the steps is a must. Students can achieve their goals only by practising regularly. RD Sharma Class 8 Solutions which is a very useful study material helps students in their exam preparation. The pdf can be downloaded from the available links mentioned below.

Download the Pdf of RD Sharma for Class 8 Maths Exercise 19.2 Chapter 19 Visualising Shapes

 

rd sharma class 8 maths chapter 19 ex 2
rd sharma class 8 maths chapter 19 ex 2
rd sharma class 8 maths chapter 19 ex 2
rd sharma class 8 maths chapter 19 ex 2
rd sharma class 8 maths chapter 19 ex 2

 

Access another exercise of RD Sharma Solutions for Class 8 Maths Chapter 19 Visualising Shapes

Exercise 19.1 Solutions

Access answers to RD Sharma Maths Solutions For Class 8 Exercise 19.2 Chapter 19 Visualising Shapes

1. Which among of the following are nets for a cube?

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 2

Solution:

Figure (iv), (v), (vi) are the nets for a cube.

2. Name the polyhedron that can be made by folding each net:

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 3

Solution:

(i) From figure (i), a Square pyramid can be made by folding each net.


(ii) From figure (ii), a Triangular prism can be made by folding each net.


(iii) From figure (iii), a Triangular prism can be made by folding each net.


(iv) From figure (iv), a Hexagonal prism can be made by folding each net.


(iv) From figure (v), a Hexagonal pyramid can be made by folding each net.


(v) From figure (vi), a Cube can be made by folding each net.

3. Dice are cubes where the numbers on the opposite faces must total 7. Which of the following are dice?

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 4

Solution:

Figure (i), is a dice. Since the sum of numbers on opposite faces is 7 (3 + 4 = 7 and 6 + 1 = 7).

4. Draw nets for each of the following polyhedrons:

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 5

Solution:

(i) The net pattern for cube is

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 6

(ii) The pattern for triangular prism is

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 7

(iii) The net pattern for hexagonal prism is

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 8

(iv) The net pattern for pentagonal pyramid is

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 9

5. Match the following figures:

RD Sharma Solutions for Class 8 Maths Chapter 19 – Visualising Shapes image - 10

Solution:

(a)-(iv) Because multiplication of numbers on adjacent faces are equal, where 6×4 = 24 and 4×4 = 16

(b)-(i) Because multiplication of numbers on adjacent faces are equal, where 3×3 = 9 and 8×3 = 24

(c)-(ii) Because multiplication of numbers on adjacent faces are equal, where 6×4 = 24 and 6×3 = 18

(d)-(iii) Because multiplication of numbers on adjacent faces are equal, where 3×3 = 9 and 3×9 = 27


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