Question:
A pattern is set into a big square ABCD shown below. The pattern is made up of identical quadrants of 2 different sizes. Two small squares of side 2 m are used to connect all the quadrants.
(a) What is the perimeter of the big square ABCD?
(b) Find the area of the unshaded parts.
Take π = 3.14
Solution:
![P6 / Ai Tong / 2020 / SA2 Prelims / Paper 1 – Q20 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_Ai_Tong_Paper1_Q20-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Nan Hua / 2021 / SA2 / Paper 1 – Q04 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/08/P6_SA2_2021_Nan_Hua_Paper1_Q04-Qns.jpg?resize=400%2C260&ssl=1)