0580/13 Oct/Nov 2021, Question 13: Angles in Parallel Lines
Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Calculator · 2 marks
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The question, in short
Two parallel lines are cut by a straight line; using the angle x° at the upper crossing and 132° at the lower crossing, find x.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1Corresponding angle at the upper intersection = 132° (parallel lines)
- 2x and 132° lie on a straight line: x = 180 − 132
- 3x = 48
Answer48
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