The length of diagonal of square is √2(6+2√5)cm. Then find the length of a side of the square.
Length of diagonal of a square =√2(6+2√5)
But, length of side of a square =diagonal of a square√2
=√2(6+2√5)√2
=(6+2√5)cm
Hence, side of square =(6+2√5)cm.