\(ABCD\) is a trapezium.
Determine the value of \(x^{\circ}\), giving reasons for your answer. (2 marks)
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\(DA \parallel CB \ \ (ABCD\ \text{is a trapezium}) \)
| \(x+113\) | \(=180\ \ \text{(cointerior angles)} \) | |
| \(x^{\circ}\) | \(=180-113\) | |
| \(=67^{\circ}\) |