Question:
Mrs Raji wanted to decorate the bulletin board with some circular pieces of paper. The diameter of each circular paper was 12 cm. She cut all the circular pieces of paper into quadrants and decorated the entire bulletin board using all the quadrants, following the pattern shown below. There was no gap between each piece of quadrant.
How many pieces of circular paper did she use to decorate the bulletin board?
Solution:
![P6 / Singapore Chinese Girls / 2019 / SA2 / Paper 2 – Q08 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_SCGS_2019_Prelims_Paper2_Q08-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nan Hua / 2019 / SA2 / Paper 2 – Q15 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Nan_Hua_2019_Prelims_Paper2_Q15-Qns.jpg?resize=400%2C260&ssl=1)