Question 760322
Second part = x
First part = x - 2
Third part = 2x
(x - 2) + x + 2x = 46
         4x - 2 = 46
              4x = 48
               x = 12
So,  First part = 10ft
    Second part = 12ft
     Third part = 24ft
           Total = 46ft

Hope this helps.
:-)