Answers

2015-12-13T18:50:28+05:30
Consider side of one square to be a and the other one to be a+4 
a^2+(a+4)^2=400
a^2+a^2+8a+16=400
2a^2+8a-384   
a^2+8a-192=0(dividing by 2)
by factorizing we will get 2 values 12 and -16 we neglect -16 as lenght cannot be negative therefore the a=12 
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2015-12-13T18:59:35+05:30
The side of the square is 6 cm
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