Measure the distance, using the bar scale, between the pole...

Measure the distance, using the bar scale, between the pole in 1400 and 1700 (locations $\mathrm{C}$ and $\mathrm{F}$ ). How far did the pole move?
a. $\sim 50 \mathrm{~km}$
b. $\sim 150 \mathrm{~km}$
c. $\sim 600 \mathrm{~km}$
d. $\sim 1,000 \mathrm{~km}$

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Key Concepts

Bar Scale

A bar scale is a graphic tool printed on a map that represents the actual distance corresponding to a specific length on the map. It allows users to directly measure distances by aligning a ruler with the scale to convert distances on the map to real-world measurements.

Map Scale

Map scale is the ratio between a distance on the map and the corresponding distance on the ground. It is a fundamental concept in cartography that helps in accurately interpreting the sizes and distances of features as represented on the map.

Distance Measurement

Distance measurement on maps involves using the map's scale—often via a bar scale—and appropriate tools like a ruler to calculate the real-world distance between two points. This practice is essential for understanding geographic relationships and making informed spatial assessments.

Scale Conversion

Scale conversion is the process of applying the map's scale factor to translate a measured distance on the map into its equivalent real-world distance. This method ensures that distances derived from the map are accurate and meaningful in a geographic context.

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