0580/11 Oct/Nov 2021, Question 16: Interior and Exterior Angles of Polygons
Cambridge IGCSE Mathematics 0580 · Paper 11 (Core) · Calculator · 2 marks
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The question, in short
Work out the size of a single interior angle in a regular octagon.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1Exterior angle = 360 ÷ 8 = 45°
- 2Interior angle = 180 − 45 = 135°
Answer135
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Also searched as: 0580/11/O/N/21 · 0580_w21_qp_11 · 0580 w21 11 · question 16.
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