Question:
The figure below is made up of two semi-circles and two isosceles triangles. The diameter of the smaller semi-circle is 10 cm while the diameter of the bigger semi-circle is 15 cm.
Taking π = 3.14, find the area of the shaded part.
Solution:
![P6 / Nan Hua / 2021 / SA2 / Paper 1 – Q06 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/08/P6_SA2_2021_Nan_Hua_Paper1_Q06-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Temasek / 2020 / SA2 Prelims / Paper 2 – Q06 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/09/P6_Temasek_2020_SA2_Paper2_Q06-Qns.jpg?resize=400%2C260&ssl=1)