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 / Tao Nan / 2020 / SA2 Prelims / Paper 2 – Q14 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/12/P6_Tao_Nan_2020_SA2_Paper2_Q14A-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / SCGS / 2020 / SA2 Prelims / Paper 2 – Q03 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/12/P6_SCGS_2020_SA2_Paper2_Q03-Qns.jpg?resize=400%2C260&ssl=1)