Respuesta :

Answer:

  • C. 5

Step-by-step explanation:

Midsegment is the half of the sum of the bases:

  • EF = 1/2(AB + DC)
  • 8.8 = 1/2(12.6 + x)
  • 12.6 + x = 2*8.8
  • x = 17.6 - 12.6
  • x = 5

Correct option is C