1mark 2020 CHIJ St Nicholas Girls P6 Paper1 SA2 P6 / CHIJ / 2020 / SA2 Prelims / Paper 1 – Q07 [1 mark] Question: Which two lines in the square grid below are perpendicular to each other? Solution: Similar Posts P6 / Maris Stella / 2020 / SA2 Prelims / Paper 1 – Q04 [1 mark] P6 / Tao Nan / 2020 / SA2 Prelims / Paper 2 – Q13 [4 marks]