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## Map Reading

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**Map Reading**Measuring the length and distance**Measuring straight line distance between two points.**• Join the two places with a straight line. • Measure the length between them on the map with a ruler. 5.5 cm • Identify the scale of the map: 1cm to 3.2 km • Do the calculation for the answer: 3.2 km X 5.5 = 17.6km**Measuring straight line distance between two points.**• Join the two places with a straight line. • Measure the length between them on the map with a ruler. • Identify the scale of the map • Do the calculation for the answer: Scale X Distance on the map**Finding the actual ground distance of a curved line by using**a piece of paper. • Use a piece of paper with straight edge. • Divide the road into different parts. Each part could be measured as a straight line.**Finding the actual ground distance of a curved line by using**a piece of paper. • Place the edge of the paper against the first part of the road. • Use to tip of a pencil to pin the paper at the end of the first part , the twist the paper till attaches to another straight part.**Finding the actual ground distance of a curved line by using**a piece of paper. • Same method is applied to measure the remaining straight**Finding the actual ground distance of a curved line by using**a piece of paper. • Place the paper along a ruler and obtain the map distance of the road in cm.**Finding the actual ground distance of a curved line by using**a piece of paper. • With reference to the linear scale, measure the actual ground distance of the road from Perth to Sydney. • Do the calculation: the scale is 1.5 cm to 500km. So the actual ground distance of the road is (10.7/1.5 X 500m)=3567km