Question:
The figure below is made up of 1 big semi-circle and 4 smaller identical semi-circles. O is the centre of the big semi-circle. XY is 84 m.
(a) Find the perimeter of the shaded part.
(b) Find the area of the shaded part.
(Take π = 22/7)
Solution:
![P6 / ACS / 2019 / CA1 – Q22 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/01/P6_ACS_2019_CA1_Q22-Qns.jpg?resize=400%2C260&ssl=1)
