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 / CHIJ / 2020 / SA2 Prelims / Paper 2 – Q06 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_CHIJ_Paper2_Q06-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nanyang / 2019 / CA1 / Paper 1 – Q14 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper1_Q14-Qns.jpg?resize=400%2C260&ssl=1)