Question:
Gabriel had a piece of wire 150 cm long. He used part of the wire to make a figure show below.
(a) Express the length of remaining wire in terms of w in the simplest form.
(b) Gabriel used the remaining wire to form an equilateral triangle. If w = 6, find the length of one side of the equilateral triangle.
Solution:
![P6 / Temasek / 2020 / SA2 Prelims / Paper 1 – Q15 [2 marks] Reader Submission #43](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2021/09/ReaderSub_43-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Tao Nan / 2020 / SA2 Prelims / Paper 2 – Q16 [5 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2020/12/P6_Tao_Nan_2020_SA2_Paper2_Q16-Qns.jpg?resize=400%2C260&ssl=1)