1mark 2021 ACS (Junior) P6 Paper1 SA2 P6 / ACS (Junior) / 2021 / SA2 Prelims / Paper 1 – Q10 [1 mark] Question: The figure below shows 14 squares. What is the smallest number of squares that much be added so that the line XY becomes a line of symmetry? Solution: Similar Posts P6 / Temasek / 2020 / SA2 Prelims / Paper 2 – Q17 [5 marks] P6 / Henry Park / 2021 / SA2 / Paper 1 – Q06 [1 mark]