Question
Michael uses identical shaded and unshaded triangles to form figures that follow a pattern as shown below.
(a) The table shows the number of shaded and unshaded triangles for the first three figures. Complete the table for Figure 4.
(b) A figure in the pattern has a total of 529 shaded triangles. What is the Figure Number?
(c) Another figure in the pattern has a total of 63 unshaded triangles. What is the total number of shaded and unshaded triangles in this figure?
Solution
![P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q10 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/02/P6_SA2_2020_Nan_Hua_Paper1_Q10-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Catholic High / 2021 / SA2 / Paper 1
– Q29 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/05/P6_SA2_2021_Catholic_High_Paper1_Q29-Qns.jpg?resize=400%2C260&ssl=1)