It is: 8*8 = 64 square cm
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Your square must have sides of 2cm so perimeter is 8cm.
Since all four sides are equal in a square, a square with an area of 4cm2 must be 2cm on each side. Therefore, the perimeter is 2cm x 4 = 8cm.
8cm.
8cm * 8cm = 8*8 cm2 = 64 cm2
Perimeter = 4 * side = 4* 8 = 32cm