1mark 2020 Nan Hua P6 Paper1 SA2 P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q08 [1 mark] Question: The figure below shows some shaded squares. What is the minimum number of squares that needs to be shaded so that AB is the line of symmetry? Solution: Similar Posts P6 / Henry Park / 2019 / SA2 / Paper 2 – Q01 [2 marks] P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q27 [2 marks]