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E:\Working\Brother_Education\Preparatory_Stage_Maths-4_(31-10-2023)\Open_Files\Chap-11
\\January 8, 2024 10:35 AM Bharat Arora P-6 Reader _________________________ Date: ___________________74

Thus, the amount of surface enclosed by a

plane closed figure is called the area. We Remember
measure area in square units (sq. units) 1 cm square means a 1 cm
square of side 1 cm.
If each unit square drawn on the Riya’s and Siya’s 1 square cm means a 1 cm 1 cm
Area
1 cm
drawing sheets has side of 1 cm, then we can square that has area square = 1 sq cm
equal to 1 square cm.
say that, the area of drawing sheet 1 = 28 sq. cm
and the area of drawing sheet 2 = 24 sq. cm

Hence, we can say that the area of a surface or a plane figure can be 1 cm

calculated by counting the number of square units that needed to cover the 1 cm

surface or the plane figure.

Example 1: Find the area of the following figures drawn on the squared paper by
counting squares. Consider each small square as 1 cm square.

(a) (b) (c)

Solution: (a) Number of unit squares in the figure = 15

Therefore, area of the figure = 15 sq. cm
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15

(b) Number of unit squares in the figure = 16
Therefore, area of the figure = 16 sq. cm 1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16

(c) Number of unit squares in the figure = 14 1 2 3

Therefore, area of the figure = 14 sq. cm 4 5 6
7 8 9 10
11 12 13 14

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