\(ABCD\) is a parallelogram.
Determine the value of \(a^{\circ}\), giving reasons for your answer. (2 marks)
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\(AB \parallel DC \ \ \text{(opposite sides of parallelogram)} \)
| \(a+125\) | \(=180\ \ \text{(cointerior angles)} \) | |
| \(a^{\circ}\) | \(=180-125\) | |
| \(=55^{\circ}\) |
Show Worked Solution
\(AB \parallel DC \ \ \text{(opposite sides of parallelogram)} \)
| \(a+125\) | \(=180\ \ \text{(cointerior angles)} \) | |
| \(a^{\circ}\) | \(=180-125\) | |
| \(=55^{\circ}\) |