ABCD is a cyclic quadrilateral. Angle . What is angle ?
Answer and explanation
Correct answer: C.
- Step 1: Opposite angles of a cyclic quadrilateral add up to 180 degrees.
- 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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