2025 CGS PRELIMS P1 Q9

2025 CGS PRELIMS P1 Q9

Secondary 4
3 marks

The ratio of exterior angle : interior angle of a regular polygon is (1:9). Calculate

  1. the number of sides of the polygon,[2]
  2. the sum of the interior angles of the polygon.[1]

Solution:

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Answer:(a) \(20\) (b) \(3240^\circ\)

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