2025 CGSS PRELIMS P1 Q14

2025 CGSS PRELIMS P1 Q14

Secondary 4
4 marks
  1. A polygon has three of its interior angles, measuring \(150^\circ\), \(160^\circ\) and \(170^\circ\). The other interior angles are \(130^\circ\) each. Find \(n\), the number of sides of the polygon.[2]
  2. Explain why it is not possible for a regular polygon to have an interior angle of \(145^\circ\).[2]

Solution:

Solution locked

Sign in to view the step-by-step solution

Similar questions are unavailable for this question.
Answer:(a) \(9\) (b) \(360/35\) is not an integer

Need help? Join our JC Math tuition classes.

Learn more