Respuesta :

The perimeter is the sum of the enclosing side.

From the figure, the perimeter is
P = 11 + (x-2) + (11-3) + [(x-2) - (x-11)] + (x-11)
   =  11 + x - 2 + 8 + 9 + x - 11
   = 2x + 15

Answer:  2x + 15
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