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I need to know if it’s A B C Or D

I need to know if it’s A B C Or D-example-1
User Remmy
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1 Answer

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Given:

The quadrilateral HIJK is inscribed in circle C.


m\angle IJK=112^(\circ)

As we know that, the opposite angles in a cyclic quadrilateral add up to 180 degrees.


\begin{gathered} m\angle IJK+m\angle IHK=180^(\circ) \\ 112^(\circ)+m\angle IHK=180^(\circ) \\ m\angle IHK=180^(\circ)-112^(\circ) \\ m\angle IHK=68^(\circ) \end{gathered}

Answer:


m\angle IHK=68^(\circ)

User Maxim Masiutin
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