When the scale is 1:1000, you need 20 x 20 = 400 square sheets to cover the map.
With the scale 1:500, you need 4 times as many square sheets, i.e. 4*400 = 1600.
With the scale 1:10000, you need = 4 square sheets.
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website! how many map sheet of size 1x1m require to plot a 20x20 km city using scales of 1/500, 1/1000, 1/10000
Scales are usually shown as 1:500, 1:1000, 1:10000
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20 by 20 km = 20,000 by 20,000 meters = 400,000,000 sq meters
Each sheet is 1 sq meter
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400,000,000/(1000*1000) = 400 sheets
Do the other 2 the same way.