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Question

Two fields have same perimeter. One is a rectangle of length 70 m and another is a square of side 51 m. Which field has greater area and what is its value?

A
Square field, 2601 m2
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B
Rectangular field, 2548 m2
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C
Both Square and Rectangular field have same area
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D
Rectangular field, 2240 m2
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Solution

The correct option is A Square field, 2601 m2
Given,
Length of rectangle = 70 m, Side of square = 51 m

Perimeter of square = 4 x Length of the side
= 4×51
= 204 m

It is given that the perimeter of square and perimeter of rectangle is equal.
Perimeter of rectangle is 204 m
Perimeter of Rectangle = 2 (Length + Breadth)
204 = 2(70+Breadth)102 = (70+Breadth)Breadth = 32 m

Area of rectangle = Length x Breadth
= 32 x 70
=2240 m2...(1)
Area of Square
= Length of side x Length of side
=51 x 51
=2601 m2...(2)

From (1) and (2)
Area of square is greater than area of rectangle.

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