<PRE><B>Question 295788</B>
I just solved this.
6*12=72
72-40=32
the shelter will be 10by 4

the walkway will be 2 meters wide.
and take up 32 m^2
10by 2 for one side of the shelter and 4*2 for the other side and 2*2 for the corner
(10+2+4)*2=32 
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