on a map of 1 centimetre to the 4 kilometre an estate occupies an area of 9.37 CM square. find the actual area to the nearest kilometre
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1cm on a map represents 4000000
5cm on a map represents =5×4000000=20,000,000cm
1km=1000m
1m=100cm
∴1km=1000×100=100000cm
∴100000cm=1km
∴20,000,000cm=
100000
20,000,000
km=200km
Thus, the actual distance between two towns is 200km.
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