Question:
John uses triangles and circles to form figures that follow a pattern as shown below.
(a) The table shows the number of triangles and circles for the first four figures. Complete the table for Figure 5.
(b) A figure in the pattern has a total of 51 triangles and circles. What is the Figure Number?
(c) How many circles did John use for Figure 115?
Solution:
![P6 / ACS / 2018 / SA1 / Paper 2 – Q01 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/05/P6_SA1_2018_ACS_Paper2_Q01-Qns.jpg?resize=400%2C247&ssl=1)
![P6 / Henry Park / 2021 / SA2 / Paper 1 –
Q28 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/06/P6_SA2_2021_Henry_Park_Paper1_Q28-Qns.jpg?resize=400%2C149&ssl=1)