Question:
The diagram shows 2 identical quarter circles and 2 identical rectangles. The 2 identical rectangles overlap at ABCD to form a square with an area of 49 cm². The perimeter of the shaded part is 95.2 cm.
(a) Find the radius of each quarter circle.
(b) Find the total area of the quarter circles.
(Take π = 22/7)
Solution:
![P6 / River Valley / 2019 / SA2 / Paper 2 – Q17 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_River_Valley_2019_Prelims_Paper2_Q17-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nan Hua / 2019 / SA2 / Paper 2 – Q15 [3 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/07/P6_Nan_Hua_2019_Prelims_Paper2_Q15-Qns.jpg?resize=400%2C260&ssl=1)