9 sq cm
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The area of square is : 144.0
12cm (4 sides x 3 = 12)
A rectangle that is 2cm by 4cm has an area of 8cm. It also has a perimeter of 12cm.
12cm x 12cm originally (144 sq cm area)
If a square has an area of 151.29cm2 its perimeter is: 49.2 cm