find the area of a square whose perimeter is 84 cm
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Let each side of square be x.
Then its perimetre =4×x.=4x
But it is given 84cm.
So 4x =84.
Therefore x =21cm.
Area of square = side ×side =21m×21m =441m^2
Then its perimetre =4×x.=4x
But it is given 84cm.
So 4x =84.
Therefore x =21cm.
Area of square = side ×side =21m×21m =441m^2
Answered by
20
Hii ☺ !!
Perimeter of Square = 84
4 × Side = 84
side = 21 cm.
Therefore,
Area of Square = (Side)² = (21)² = 441 cm².
Perimeter of Square = 84
4 × Side = 84
side = 21 cm.
Therefore,
Area of Square = (Side)² = (21)² = 441 cm².
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