Ratio, SM-Bank 049 Determine the scale factor if an actual length of 2 centimetres represents a scaled length of 5 metres. (2 marks) --- 5 WORK AREA LINES (style=lined) --- Show Answers Only \(\dfrac{1}{250}\) Show Worked Solution \(\text{Scale ratio}=\text{scale length}\ :\ \text{actual length}\) \(=5\ \text{m}\ :\ 2\ \text{cm}\) \(=500\ \text{cm}\ :\ 2\ \text{cm}\) \(=500\ :\ 2\) \(=1\ :\ \dfrac{1}{250}\) \(\text{Scale factor}\) \(=\dfrac{1}{250}\)