Question:
The figure is made up of a big semicircle of radius 30 cm. 2 circles and 3 semicircles of equal radius are drawn in the big semicircle.
(a) What is the radius of the circle?
(b) What is the area of the shaded parts? Take π = 3.14.
Round your answer correct to 1 decimal place.
Solution:
![P6 / Maris Stella / 2020 / SA2 Prelims / Paper 1 – Q01 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/12/P6_SA2_2020_Maris_Stella_Paper1_Q01-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q27 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/02/P6_SA2_2020_Nan_Hua_Paper1_Q27-Qns.jpg?resize=400%2C260&ssl=1)