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)

Measuring real-world distances on a map relies on the map’s scale, and the scale bar is the tool that makes that possible. The scale bar is a built-in graphic ruler marked with distance units. When you measure the distance between two points on the map with a ruler or estimate along the map, you compare that measured length to the scale bar to read the real-world distance directly. For example, if the scale bar shows that 2 cm on the map corresponds to 5 kilometers in reality, a measured 4 cm separation would be 10 kilometers. The compass rose simply shows direction, not distance; the legend explains what symbols mean; the title is just the map’s name.

Measuring real-world distances on a map relies on the map’s scale, and the scale bar is the tool that makes that possible. The scale bar is a built-in graphic ruler marked with distance units. When you measure the distance between two points on the map with a ruler or estimate along the map, you compare that measured length to the scale bar to read the real-world distance directly. For example, if the scale bar shows that 2 cm on the map corresponds to 5 kilometers in reality, a measured 4 cm separation would be 10 kilometers. The compass rose simply shows direction, not distance; the legend explains what symbols mean; the title is just the map’s name.