When measuring straight line distance on a map, how should the edge of the measuring paper be placed?

When measuring straight line distance on a map, how should the edge of the measuring paper be placed?

• A. It should touch the map borders.
• B. It should align with a north-south grid line.
• C. It should touch the centers of both points.
• D. It should pass through the highest contour.

Answer: (C)

Measuring straight-line distance on a map means drawing a line that directly connects the two exact locations. Place the edge so that it passes through the centers of the two point marks, ensuring the measured distance reflects the true straight-line separation between the two locations. If you align with map borders or with grid lines, you’re measuring along unrelated references rather than the direct path between the points. Contour lines show elevation and don’t affect horizontal distance, so they’re not used for this measurement. Also, aiming to touch the edges of the symbols can shift the endpoints away from the actual locations, introducing error.

Measuring straight-line distance on a map means drawing a line that directly connects the two exact locations. Place the edge so that it passes through the centers of the two point marks, ensuring the measured distance reflects the true straight-line separation between the two locations. If you align with map borders or with grid lines, you’re measuring along unrelated references rather than the direct path between the points. Contour lines show elevation and don’t affect horizontal distance, so they’re not used for this measurement. Also, aiming to touch the edges of the symbols can shift the endpoints away from the actual locations, introducing error.