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Question

The area of a square shaped field is 36 hectares. Find the perimeter of the field in metres.

A
1800 m
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B
2400 m
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C
2800 m
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D
3200 m
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Solution

The correct option is B 2400 m
Let the length of each side of the square shaped field be a.
Area of the field = a2

We know that 36 hectares = 36× 10,000 hectares
( 1 hectare = 10,000 m2)

So, a × a = 360000 m2
a × a = 600 x 600
a = 600 m

So, the length of each side of the square shaped field is 600 m.

Perimeter of the field = 4a = 4 × 600 = 2400 m
Therefore, perimeter of the square shaped field is 2400 m.

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