In the figure above (not to scale), `AB=CD` and `/_A =100^(@)`. `/_ C – InterviewSolution

1.	In the figure above (not to scale), `AB=CD` and `/_A =100^(@)`. `/_ C =`A. `100^(@)`B. `120^(@)`C. `80^(@)`D. `40^(@)`
Answer» Correct Answer - a (I)Adjacent angles of a cyclic quadrilateral must be equal if two of its opposite sides are equal. (ii) ABCD is a cyclic quadrilateral. (iii) Opposite angles of a cyclic quadrialteral are equal if their opposite sides are equal, use this to find the required angle.

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