0580/11 May/Jun 2022, Question 7: Angles in Parallel Lines
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 2 marks
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The question, in short
Two parallel lines are crossed by a straight line; using the angles marked x° and 68° on the lower line and y° on the upper line, find x and y.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1x = 180 − 68 = 112 (angles on a straight line)
- 2y = 68 (alternate angles, parallel lines)
- 3x = 112, y = 68
Answerx = 112, y = 68
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