Question 1072271
Exterior angle = 40 degrees
Sum of all exterior angles in a polygon  = 360 degrees
 For n sided polygon , there will be n exterior angles
 Hence for n sides, Sum of all exterior angles =  n*40
 Hence n*40= 360
         n= 360/40
           =9
 there will be 9 sides
        Let lengtt of each side be x feet
 Hence perimeter = x+x+x+x+x+x+x+x+x
                  = 9x
 But , perimeter  = 63 feet
 9x =63
  x= 63/9
       = 7 feet
Hence length of each side  = 7 feet