Question

find the length of side of a square field whose area is equal to the area of rectangular field having length and 100M and breadth 81 m

Answer 1

Area of rectangular field= $l \times b= 100\times81=8100 m^2$
Ares of Square Field=$a^{2}$
$a^{2} =8100 m^{2} \\ a= \sqrt{8100} \\ a=90m$

Answer 2

Hey friend,

Here is your answer,
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Length of rectangle = 100m

Breadth of rectangle = 81m

Area of rectangle = 100*81
                            = 8100m²


Area of square = 8100m² =  (Side)²

Side = √8100
         = 90m

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