how much wrapping paper is needed to cover the larger box?

Mathematics
Tutor: None Selected Time limit: 1 Day

A gift shop uses two sizes of boxes for presents. These boxes have exactly the same shape. The smaller box is 

 long, and the larger box is 
 long. If 
 of wrapping paper is needed to cover the smaller box, how much wrapping paper is needed to cover the larger box?
May 12th, 2015

for 8in box, let say the wrapping paper required is K. sides^2

k*8^2 = 320

k = 5

therefore, wrapping paper required for big box with side 13 in is 

= k*13^2

= 5*169

= 845 in square

hence, 845 in sq of wrapping paper is required to wrap big box. 

May 12th, 2015

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May 12th, 2015
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May 12th, 2015
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