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2015-05-25T15:38:24+05:30

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Length = 8m
breadth=6m
perimeter = 2(l+b)
               =2(8+6)
               =2(14)
               =28m .
diagonal divides the rectangle shaped room into two equal right-angled triangles
  So, the diagonal will be the hypotenuse of the right-angled triangle .
      We know that (hypotenuse)²=(side)²+(side)²
     So, (hypotenuse)²=(8)²+(6)² 
                               =64+36
                               =100
         hypotenuse=√100=10m
   therefore , the total distance covered by the cat = 28m+10m=38m
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2015-05-25T15:51:17+05:30
Perimeter of rectangle is 2lb and total length of 4 walls is 28m
diagonal of this is sq root of 8^2+6^2 which is 10 m and hence the total distance ran by rat is 38 m.
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