Question 1128281
Hi

Ok so the length is 10mm longer than the width and the perimeter is more than 80mm.

Length = w+10
Width = w

So lets add the lengths 

There are 

w + 10
w + 10
w
w

= 4w + 20 

we know what 4w + 20 > 80 so
4w > 80-20 = 4w > 60 = w > 15

Length = w + 10
Length = w + 10 >25

So I am guessing that the answer is Width > 15 

Hope this helps