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Question

A square and a rectangular field with measurements as given in the following figure have the same perimeter. Which field has a larger area?
301206_230cabd74d844293941f558c9087013c.png

A
Square has larger area, square =3600m2.
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B
Rectangle has larger area, square =3600m2.
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C
Square has larger area, square =1600m2.
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D
Square has larger area, square =3800m2.
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Solution

The correct option is A Square has larger area, square =3600m2.
Let x be the breadth of the rectangle. It is given that the perimeter of a rectangle = perimeter of the square.
2(80+x)=4×60
80+x=120
x=12080=40
i.e. breadth of the rectangle =40m
Now, Area of the square =(60×60)m2=3600m2
and the area of the rectangle =(40×80)m2=3200m2.
Hence, the square field has a larger area.

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