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 / Henry Park / 2020 / SA2 Prelims / Paper 1 – Q19 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_Henry_Park_Paper1_Q19-Qns.jpg?resize=400%2C205&ssl=1)
![P6 / Singapore Chinese Girls / 2019 / SA1 / Paper 2 – Q13 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/05/P6_Singapore_Chinese_Girls_2019_SA1_Paper2_Q13-Qns.jpg?resize=400%2C163&ssl=1)