You are planning your trip using a road map with a scale of 1:200,000. 1 cm on the map corresponds to how many kilometres in reality?

A map scale of 1:200,000 means that 1 unit on the map equals 200,000 units in reality. Since 1 cm on the map corresponds to 200,000 cm in real life, and 100,000 cm equals 1 kilometer, 200,000 cm equals 2 kilometers. Therefore, 1 cm on the map represents 2 kilometers in reality. This is why the correct answer is 2 km, not 1 km. Understanding map scales helps you accurately estimate distances during trip planning.