Question:
Two square tiles of equal sides are shown below. Some parts of the tiles are painted in the shape of identical quarter circles.
A floor is laid with the tiles that follow a pattern as shown below. The floor measure 5.2 m in length and 3.6 m in breadth and is completely covered with the tiles.
Find the area of the floor that is covered by the painted parts of the tiles.
(Take π = 22/7)
Solution:
![P6 / CHIJ / 2020 / SA2 Prelims / Paper 1 – Q17 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_CHIJ_Paper1_Q17-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / CHIJ / 2020 / SA2 Prelims / Paper 1 – Q06 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/08/P6_SA2_2020_CHIJ_Paper1_Q06-Qns.jpg?resize=400%2C260&ssl=1)
Where did you get 0.2 from?
Hi! 0.2 is actually 0.2m or 20cm, the length of the tile.