Question 11
- Two regular polygons P and Q are such that the number of sides of P is twice the number of sides of Q. The difference between the exterior angle of Q and P is 45. Find the number of sides of P.
- The area of a semi-circle is 32. Find, in terms of , the circumference of the semi-circle.
Observation
The Chief Examiner reported that this question was quite popular with the candidates. However, some candidates who attempted part (a) of this question had difficulty with the application of the exterior and interior angle formula for polygon.
