Question:
The figure is drawn on a rectangular piece of paper 30 cm by 40 cm as shown below. Its outline consists of 4 identical quarter circles and 5 straight lines.
(a) Find the perimeter of the shaded figure.
(b) Find the area of the shaded figure. (Take π = 3.14)
Solution:
![P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q30 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/02/P6_SA2_2020_Nan_Hua_Paper1_Q30-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Maha Bodhi / 2019 / SA1 / Paper 2 – Q10 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/04/P6_MahaBodhi_2019_SA1_Paper2_Q10-Qns.jpg?resize=400%2C260&ssl=1)