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Figure 18: The measured distance of a curved line using a pair of dividers

(d) Measure the distance of each segment you divided using a ruler
and record them on paper as shown in Figure 19;

Figure 19: A ruler and a pair of dividers

(e) Add the measured distances to obtain the total distance from
points A to B; and

(f) Convert the obtained map distance into the ground distance
using the representative fractional scale as in the measurement
of straight distances using a piece of paper. For example, if
a total map distance obtained in step (d) was 14 cm and the

representative fractional scale is 1:50000, then the actual ground
distance between points A and B is 7 kilometres.

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