SChand Composite Mathematics Class 7 Chapter 18 Visualising Solid Shapes Exercise 18B

 Exercise 18B

Question 1

Copy each net into your book and add the face that is needed to make the net of named solid . Shade the added face . 

Prime:- Two parallel congruent Polygonal faced connected  

Pyramid : - Polygon base and triangular faces meet at a common vertex.

(diagram to be added)

Question 2

Label each net as of :

(a) cuboid

(b) cube

(c) triangular pyramid

(d) rectangular pyramid

(e) cone

(f) cylinder

(g) square pyramid

(h) triangular prism

Question 3

Draw the net of a cube. Put the number I to 6 on the faces so that the number  on opposite faces add to 7. Can this be done in more than one. If so, give all ways.

One has been done for you :

(diagram to be added)

Question 4

 Name the different plane shapes needed to draw the net of :

(a) a cube

(b) a triangular prism

(c) a triangular pyramid

(d) a cylinder

(diagram to be added)

Question 5

Which of these nets will not fold up to give a cube?

[Hint. Make the cardboard cutouts of the following nets and fold them to sce whether a cube is formed or not]

(diagram to be added)

Question 6

Only one of these nets could form a pyramid. Which one ?