P6 / Henry Park / 2021 / SA2 / Paper 1 – Q25 [2 marks]

Question:

Joshua had a piece of wire measuring 14k cm in length. He used it form an equilateral triangle and had 4 cm of wire left.
(a) Find the length of each side of the equilateral triangle in terms of k in the simplest form.
(b) Find the perimeter of the equilateral triangle given that k = 8

Solution: