if you mean 4cm by 4cm square, then the area is 16cm2
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1 side of square = 2cm area of square = side x side so, area= 2x2 = 4 cm^2
If that means (2 times 4) then the area of the square is 8*8 = 64 square cm
No. You have to take the square root of the area and then multiply that by 4. For example, if the area is 25, then the perimeter is 5 x 4 = 20.
The area of a square is the (perimeter/4)^2. The perimeter is 52, so 52/4=13. 13^2 is 169. The area of the square is 169 cm.^2.
Divide the perimeter by 4 and then square the result to find the area of the square.