Page 212 - Maths Skills - 7

13 Visualising Solid Shapes
13
Visualising Solid Shapes

Learning Outcomes

In this chapter, you will learn about:
� Drawing solids an a flat surface � Euler's formula � Nets of solids
� Visualizing solids � Mapping through visual estimation

Boot-Up (To Recapitulate Previous Knowledge of Concepts)

COMPETENCY BASED QUESTIONS

A. Multiple-Choice Questions
1. The number of vertex/vertices in a cube is/are ___________.
(i) 12 (ii) 8 (iii) 6 (iv) none of these

2. The number of vertex/vertices of a cone is/are ___________.
(i) 3 (ii) 6 (iii) 1 (iv) none of these
3. The corners of a solid shape are called its ___________.

(i) vertices (ii) faces (iii) edges (iv) none of these
4. The number of triangular lateral faces in a triangular pyramid is ___________.
(i) 4 (ii) 6 (iii) 10 (iv) 3

B. Fill in the Blanks

1. A dice is an example of ___________.

2. A football is an example of a ___________.

3. A square pyramid has ___________ edges.

4. An object that occupies space is called a ___________.

C. Write ‘T’ for true and ‘F’ for false Statements

1. The opposite faces of a cuboid are identical.

2. Every cuboid is a cube.

3. A sphere has no vertex and no edge.

4. A cuboid has only length and breadth.