The diagonal of a square is 15 m; find the length of its one side and perimeter.
The diagonal of a square is 15 m; find the length of its one side and perimeter.
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Diagonal of square = 15 m
Let side of square = a
a2 + a2 = (15)2 = 225
a2 = 225/2 = 112.50
a = √112.50 = 10.6 m
Perimeter = 4 x a = 10.6 x 4 = 42.4 m
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