Respuesta :

mhanifa

Answer:

  • x = 20

--------------------------

According to the Angles of Intersecting Chords Theorem, the angle between two chords is half the sum of the intercepted arc measures :

  • m∠AEC = m∠DEB = (mAC + mDB)/2

Substitute and solve for x:

  • 4x = (120 + 2x)/2
  • 4x = 60 + x
  • 3x = 60
  • x = 20

Otras preguntas