Q19 of 61 Page 93

To find the cost of painting a wall we need to find the perimeter of the wall.

The paint will be applied on the whole area of the wall and not on the sides of the wall.

So to find the cost of paint one has to know the area of the wall.


So the statement is false.


More from this chapter

All 61 →
17

A farmer who wants to fence his field, must find the perimeter of the field.

 18

An engineer who plans to build a compound wall on all sides of a house find the area of the compound.

 20

To find the cost of a frame of a picture, we need to find the perimeter of the picture.

 21

Four regular hexagons are drawn so as to form the design as shown in Fig.11.1. If the perimeter of the design is 28cm, find the length of each side of the hexagon.