Answer:
8cm
Step-by-step explanation:
So since we know the scale of the map (4cm : 4km or we can also write it down as 1cm : 1km) we will just have to find out how much 4km fits into 8km and then multiply the result by 4cm. So we do the following steps.......
[tex](\frac{8}{4})4 = (2)(4) = 8[/tex]