Question 1205081
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The linear scale is 1:25,000
It means 1 cm on paper represents 25,000 cm in the real world.


25000 cm = 25000/100 = 250 m
We divide by 100 since 100 cm = 1 m.


We can rewrite that linear scale to say
1 cm : 250 m


Square each part of the linear scale to get the area scale.
1^2 = 1
250^2 = 62,500


1 square cm on paper corresponds to 62,500 square meters in the real world.


11.5 square centimeters on paper corresponds to 11.5*62500 = 718,750 square meters in the real world.


1 hectare is defined to be a square of side 100 meters.
Meaning that 1 hectare = (100)^2 = 10,000 square meters


Divide by 10,000 to convert from square meters to hectares. 
(718,750)/(10,000) = 71.875 hectares


That will then round to <font color=red>72 hectares</font>
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