Diagonal of a Square is 20m.Find its Area,Length of one side and Perimeter.

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1. Answer:

   Diagonal of square = 20 cm.
   

   We know that Area of Square =
   

   1/2 × d²
   

   = 1/2 × 20 × 20
   

   = 10×20
   

   = 200 cm².
   

   Also, area = side²

   So,
   

   side = √area
   

   side = √200
   

   Side = 10√2 cm.
   

   Perimeter= 4 × side
   

   = 4 × 10√2
   

   = 40√2 cm.
   

   Hence the perimeter of the square is 40√2 cm.

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