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posted by zainab on Wednesday, January 9, 2013 at 8:38am.
if 2 cm on a map is 50 kms what is 8.5 cms on a map...how many kms ???
use a straightforward proportion 2 cm/50 km = 8.5 cm / x km 2x = 42.5 x = 21.25 8.5 cm on the map represent 21.25 km
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