We calculate the area when there is a boundary enclosing a space, for example, the outer and inner surface area of objects like cylinders, cones, spheres, walls, or floors.
To determine the space taken up by substances such as water, milk, coffee, tea, etc., we need to calculate the volume of the object.
(a) In this situation, we will find the volume.
(b) In this situation, we will find the surface area.
(c) In this situation, we will find the volume.
Colours | Number of people |
---|---|
Blue | 18 |
Green | 9 |
Red | 6 |
Yellow | 3 |
Total | 36 |
Mention the following.
(i) Two examples of social practices prevailing then.
(ii) Two oppressive policies of the British.
(iii) Two ways in which common people suffered.
(iv) Four reasons for the discontent that led to the 1857 War of Independence.