GAUSS7 2010 Problem 15

Past Contests GAUSS7 GAUSS (GR. 7) - 2010
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Square M has an area of 100\:cm^2. The area of square N is four times the area of square M. The perimeter of square N is

Answer Choices
A. 160\:cm
B. 400\:cm
C. 80\:cm
D. 40\:cm
E. 200\:cm