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Question

The length of a rectangular field is 10m and breadth is 4m. If a square field has the same perimeter as this rectangular field, find which field has the greater area.


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Solution

Step 1: Finding the perimeter of the square and rectangle.

Given, length = 10m, breadth = 4m

Perimeter of rectangle = 2×length+breadth

=2×10+4=2×14=28m

Given,

Perimeter of rectangle = perimeter of the square

28=4×side284=side7m=side

Step 2: Finding the area of square and rectangle.

Area of square = side×side

=7×7=49m2

Area of rectangle = length×breadth

=10×4=40m2

Hence, as we can see the square field has the greater area.


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