How area of hankercife comes 42 of exercise 12.3 question no 11

Hi,

 

In a question, it is given that radius of each circle = 7 cm

Thus, diameter of each circle = 14 cm

 

Now, on each side of square, there are 3 circles.

Hence, side of a handkerchief (square) = 3 x Diameter of each circle = 3 x 14 = 42 cm

 

Thus, area of handkerchief = (42)² = 1764 sq. cm

 

Hope this clarifies your doubt.

 

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