Respuesta :

mhanifa

Answer:

  • 3 cm

Step-by-step explanation:

As per question ΔCED is right triangle:

  • ED = BD/2 = 8 / 2 = 4 cm

Use Pythagorean  to find EC:

  • EC = [tex]\sqrt{CD^2 - ED^2}[/tex]
  • EC = [tex]\sqrt{5^2 - 4^2} = \sqrt{9} = 3[/tex] cm
MAC186

Answer:

3 cm

Step-by-step explanation:

mark brainest

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