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O-LevelMathematicsGeometry4024/11 · Oct/Nov 2021 · Q92 Marks

The interior angle of a regular polygon is 156°. Find the number of sides of this regular polygon.

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2021). The mark or mark type is shown in brackets.

  1. 9 15 [2] M1 for 360/(180-156) oe or 180(n-2)/n = 156 oe

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About this question

Topic
Geometry, O-Level Mathematics (syllabus 4024). Structured question, 2 marks.
Source
O-Level Mathematics, Oct/Nov 2021 Paper 1 Variant 1, question 9.

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