Question:
A piece of wire was bent to form the following figure which was made up of 2 circles. The diameter of the big circle to the diameter of the small circle is in the ratio of 2 : 1. There was 4 cm of the wire left after making the figure. Find the total length of the wire. (Take π = 22/7)
Solution:
![P6 / Raffles Girls / 2019 / SA1 / Paper 2 – Q15 [4 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/05/P6_Raffles_girls_2019_SA1_Paper2_Q15-Qns.jpg?resize=400%2C126&ssl=1)
![P6 / Nanyang / 2019 / CA1 / Paper 2 – Q17 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/04/P6_CA1_2019_Nanyang_Paper2_Q17-Qns.jpg?resize=400%2C260&ssl=1)