Answer:
The difference is 22.5 km
Explanation:
CD = 4.5 cm
DE = 8 cm
-----------
12 .5 cm
CE = 5 cm
The difference is
12.5 - 5 = 7.5 cm
Then multiply by the scale factor
7.5 cm * 3 km /1 cm =22.5 km
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