Ratio, SM-Bank 047 Determine the scale factor if an actual length of 2 millimetres represents a scaled length of 2 metres. (2 marks) --- 4 WORK AREA LINES (style=lined) --- Show Answers Only \(\dfrac{1}{1000}\) Show Worked Solution \(\text{Scale ratio}=\text{scale length}\ :\ \text{actual length}\) \(=2\ \text{m}\ :\ 2\ \text{mm}\) \(=2000\ \text{mm}\ :\ 2\ \text{mm}\) \(=1000\ :\ 1\) \(=1\ :\ \dfrac{1}{1000}\) \(\text{Scale factor}\) \(=\dfrac{1}{1000}\)