Question:
In the figure below, ABCD is a square of side 20 cm. O is the centre of the square. ABD is a quadrant. AOB and AOD are identical semicircles.
(a) Find the perimeter of the shaded part.
(b) Find the area of the shaded part.
(Take π = 3.14)
Solution:
![P6 / Henry Park / 2020 / SA2 Prelims / Paper 2 – Q03 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/09/P6_Henry_Park_2020_SA2_Paper2_Q03-Qns.jpg?resize=400%2C260&ssl=1)
