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A park had an actual area of 5km2. Find the area, in square centimetres, of the park on the map 

 

Scale is 1:20000

 Jul 15, 2021

Best Answer 

 #1
avatar+32779 
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5km^2 = 5*10^10 cm^2   (1km = 10^5cm)

 

Scale this down by 20000^2 for the map (map scales are usually linear values)

 

Area on map = 5*10^10/(2*10^4)^2 cm^2 = 5*10^10/(4*10^8) cm^2 = 125 cm^2

 Jul 15, 2021
 #1
avatar+32779 
+2
Best Answer

5km^2 = 5*10^10 cm^2   (1km = 10^5cm)

 

Scale this down by 20000^2 for the map (map scales are usually linear values)

 

Area on map = 5*10^10/(2*10^4)^2 cm^2 = 5*10^10/(4*10^8) cm^2 = 125 cm^2

Alan Jul 15, 2021
 #2
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0

A Shopping mall has an area of 3.2cm^2 on the map.

calculate the are of the actual shopping mall in square kilometres.

 Jul 18, 2021

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