The area is 1583 square units, approx.
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144 cm2
12
The perimeter (measured in cm) is the length around so you would just add 144 + 162 + 144 + 162. The area (measured in sq. cm) is how much the surface covers. It is just multiplying 144 x 162.
the perimeter is 36 and the area is 144
Each side of the square will have a length of 12cm and its area is 12*12 = 144 square cm