0580/23 May/Jun 2021, Question 4: Angles at a Point and on a Line
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 2 marks
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The question, in short
Three angles meet at a point: 100°, y° and y°. Use the fact that angles around a point total 360° to find y.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1Angles at a point sum to 360°
- 22y = 360 − 100 = 260
- 3y = 130
Answer130
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