Find the area and the perimeter of a square qhose side is 20.5 cm
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side= 20.5
area= side×side
=20.5×20.5
= 420.25cm^2
perimeter= 4×side
=4×20.5
= 82cm
area= side×side
=20.5×20.5
= 420.25cm^2
perimeter= 4×side
=4×20.5
= 82cm
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