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4 doubled is 8.
Area is quadrupled (*4) and perimeter is doubled.
It is: (65+65)*4 = 520
If the linear dimensions are doubled, the area is multiplied by (2)2 = 4 .
if it is a 2 inch square and the side lengths are doubled the side lengths would be 4. therefore 4+4+4+4=16 so the perimeter is 16inches squared.