Page 106 - Mathematics_Std_4

Example 2

A square side field has a length of 70 metres. Find the area
of the field.
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Solution

Side length = 70 m
The square is drawn as follows.
70 m

70 m

Thus, area of a square = length × length.

=70 m × 70 m
2
= 4900 m .
2
Therefore, the area of the field is 4900 m .

Exercise 2

1. Find the area in each of the following shapes:

(a) 8 cm (b)

8 cm 10 m

10 m

2. The length of one side of a square is 40 centimetres.
Find the area of the square.

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06/11/2024 17:17:24
MATHEMATICS STD 4 PB 2024.indd 99
MATHEMATICS STD 4 PB 2024.indd 99 06/11/2024 17:17:24