Answer:
The distance between park and museum is 12km.
Step-by-step explanation:
Given that the map shows 1cm represents 3km. In this question, the distance between park and museum is 4cm so in order to find the real-life distance, you have to multiply by 4 :
[tex]1cm = 3km[/tex]
[tex]4cm = 3km \times 4[/tex]
[tex]4cm = 12km[/tex]