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E:\Working\Brother_Education\Preparatory_Stage_Maths-4\Open_Files\Chap-11
\\October 31, 2023 10:13 AM Bharat Arora P-6 Reader _________________________ Date: ___________________74

2. Find the area of each of the following figures drawn on a square grid. take
the side of a square as 1 unit.

(a) (b) (c)

(d) (e) (f)

Encapsulate
math

Perimeter And AreA

Perimeter Area

Area is the amount of surface covered by a
The length of the boundary of a closed figure closed plane figure.
is called its perimeter. example:
Perimeter of a polygon = Sum of the lengths
of its sides
1. Perimeter of a triangle = Sum of the lengths 1 2 3 4 5
6 7 8 9 10
of its three sides 11 12 13 14 15
2. Perimeter of a rectangle = 2 × (length +
breadth)
3. Perimeter of a square = 4 × length of a side Number of unit squares in the figure = 15
Thus, area of the figure = 15 sq. units

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MAths connect

India is the seventh largest country in the world in terms of area. The area
covered by the country is 31,66,391 sq. km.
In which state do you live? Write the area of your own state as well as your neighbouring
states with the help of internet. List them in ascending order.

212 Mathematics-4