Which feature is used to compute distances on a map?

Which feature is used to compute distances on a map?

• A. Scale bar
• B. Compass rose
• C. Legend
• D. Title

Answer: (A)

Distances on a map are determined by a scale, and the feature that makes computing them straightforward is the scale bar. The scale bar is a built-in ruler on the map that shows how map distances translate to real-world distances. If you measure the distance between two points on the map and compare it to the scale bar, you can read off the actual distance in miles or kilometers. For example, a scale bar that shows 1 centimeter equals 5 kilometers lets you convert a measured 3 cm on the map into 15 kilometers in the real world. The other elements have different roles: a compass rose helps with direction, a legend explains symbols, and a title tells you what the map is about, but none of these provide a direct way to measure distance.