geography

Posted by Claire on Tuesday, September 18, 2007 at 5:55pm.

The scale of a map is 9mm represent 1km on real ground. I found the area of the map and it is 19990mm2. How am I going to use the scale to find the area of the real ground? Thanks a lot!

technical design/maps/geography - bobpursley, Tuesday, September 18, 2007 at 6:15pm
If the scale is 9mm/1km, then the area scale is that squared, or 81squaremm per 1 km^2
- Thanks - Claire, Wednesday, September 19, 2007 at 5:00pm
  Thank you so much for your help!

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