A town planner is using a map of a town centre with a scale of 1 : 1250
The town planner wants to estimate the area of a plot of land. On the map it is 6cm ^2 . What is the corresponding area on the ground? Give your answer in square metres, rounded to 2 significant figures.
the real life area and the shape on the map are similar.
the ratio of similar shaped areas is equal to the squares of their corresponding dimensions.
so 1^2/1250^2 = 6/x
x=9375000 cm^2
= 937.5 m^2 (there are 10000 cm^2 in 1 m^2)
you were asked for 2 significant digits, so I would answer it as 940 m^2
could u ellaborate a little more on this please I cant quite grasp it