Question:
The figure below is made up of three identical overlapping circles and one equilateral triangle. Given that the area of the triangle is 63 cm and the radius of each circle is 7 cm,
a) Find the perimeter of the shaded part A.
b) Find the area of the shaded part B (Take π = 22/7)
Solution:
![P6 / Catholic High / 2020 / SA2 Prelims / Paper 1 – Q13 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/06/P6_SA2_2020_Catholic_High_Paper1_Q13-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Ai Tong / 2020 / SA2 Prelims / Paper 1 – Q25 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_Ai_Tong_Paper1_Q25-Qns.jpg?resize=400%2C260&ssl=1)