Area, SM-Bank 083 Convert an area of 3 square centimetres to square millimetres. (1 mark) --- 2 WORK AREA LINES (style=lined) --- Show Answers Only \(300\ \text{mm}^2\) Show Worked Solution \(\text{1 cm}^{2} = 10\ \text{mm}\times 10\ \text{mm}\ =100\ \text{mm}^2\) \(\text{3 cm}^{2} = 3 \times 100 = 300\ \text{mm}^2\)