1. Do the units have to be the same in a scale on a scale drawing?
Some scale drawings use the same units e.g. 1 cm : 100 cm
Some scale drawings use no units e.g. 1 : 100
Some scale drawings use different units e.g. 1 cm : 100 km
2. What are scale drawings used for?
Scale drawings are used in many areas of life from maps and house plans to models and patterns for making clothes.
