Given:
Diagonal of Square = 288 cm
For a square , each of whose side is 'a' .
Diagonal of Square = √2 a
288 = √ 2 a
a= 288 /√2
a= (288× √2/ √2 × √2)
[ By rationalising the denominator]
a= 288√2 /2
a= 144√2
Hence, the side of a square is144√2 cm
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