Answer:
[tex]14cm[/tex]
Step-by-step explanation:
[tex]1 : 200000 \\ 1cm : 200000cm \\ \\ 28km = 28000m \\ 28000m = 2800000cm \\ \\ 1 : 200000 \\ x : 2800000 \\ cross \: multiple \\ \\ 200000x = 1 \times 2800000 \\ 200000x = 2800000 \\ \frac{200000x}{200000} = \frac{2800000}{200000} \\ x = 14cm[/tex]
