ABCD is a cyclic quadrilateral. Angle . What is angle ?

Answer and explanation

Correct answer: C.

  1. Step 1: Opposite angles of a cyclic quadrilateral add up to 180 degrees.
  2. Step 2: .
Answer
.
Why not the others: 112 degrees is the given angle, 56 degrees is half of it and 78 degrees is not related to the opposite-angle rule.

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ABCD is a cyclic quadrilateral. Angle ABC = 112… | UK GCSE