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ABCD is a cyclic quadrilateral. Side AB is produced to E and ∠CBE = 75°. Find ∠ADC.

Competition practiceGeometry
  • A105°
  • B150°
  • C75°
  • D37.5°

Step-by-Step Solution

, so : an exterior angle of a cyclic quadrilateral equals the interior opposite angle.
Answer: C) 75°

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