(a) Outline map reduced to a scale of 1:150,000
The reduction factor is:
\[\frac{1:150\,000}{1:50\,000}=3\]
Thus, every length on the original extract is reduced to one-third. The completed reduced outline is shown below.
Reduced outline of the mapped area at a scale of 1:150,000, showing Kaiama, River Gbesha, point X and the trigonometrical station.
(b) Features marked on the outline
Nodal settlement: Kaiama. Several roads converge at Kaiama.Secondary road: No secondary road is shown on the map extract. The roads shown are the main road and minor roads or tracks.Trigonometrical station: the trigonometrical station northwest of Kaiama, marked by the trigonometrical-station symbol.(c) Full length of River Gbesha from point X
Length measured along the winding river course on the map = \(27.4\text{ cm}\).
At a scale of \(1:50,000\):
\[\text{Ground distance}=27.4\times50,000=1,370,000\text{ cm}\]
\[\text{Ground distance}=\frac{1,370,000}{100,000}=13.7\text{ km}\]
Therefore, the full length of River Gbesha from X is 13.7 km .
(d) Identification
(i) Land-use types
Agriculture or farming, indicated by scattered cultivation. Animal grazing, indicated by the savanna vegetation. Other identifiable land uses include settlement and transportation.
(ii) Social amenities in Kaiama
Postal agency Market Health centre Other social amenities shown include a rest house, church and school.