To determine the distance between Surfer's Town and Green Prairie, we first note their coordinates:
- Green Prairie: 45 degrees East, 15 degrees South
- Surfer's Town: 50 degrees East, 15 degrees South
Both locations have the same latitude (15 degrees South), but they are located 5 degrees apart in longitude (50 degrees East - 45 degrees East = 5 degrees).
Since the map indicates that each 5-degree increment in longitude corresponds to a distance represented by one-inch square, and the key states that each one-half inch equals 10 kilometers, we can interpret this information as follows:
1 inch = 10 km (for the 5-degree square) Therefore, the distance between the two towns, which are 5 degrees apart in longitude, is:
- Green Prairie to Surfer's Town = 1 inch = 10 kilometers.
The question asks for the distance between the two towns, so the answer is:
10 km.