What is the approximate length of this highway?

• A. About 150 kilometers.
• B. About 120 kilometers.
• C. About 200 kilometers.
• D. About 80 kilometers.

Answer: (A)

Distance estimation on a map relies on the scale. Find the map’s scale, then measure the highway along the actual route with a ruler and convert that length into real-world kilometers by multiplying by the scale. If that conversion lands near 150 kilometers, that’s why the best choice is about 150 kilometers. Remember, tracing the curved path rather than a straight line gives a more accurate length, and the other options would be noticeably farther from your calculated value.