A location on a chart can be expressed in terms of which two coordinates?

A location on a chart can be expressed in terms of which two coordinates?

• A. Latitude and Longitude
• B. Altitude and Depth
• C. Time and Date
• D. X and Y

Answer: (A)

In navigation, a location on a chart is identified by two coordinates: latitude and longitude. Latitude measures how far north or south you are from the equator, while longitude measures how far east or west you are from the prime meridian. Together, they uniquely specify any point on the Earth's surface, and marine charts use these geographic coordinates to show exact positions. Altitude or depth are vertical measurements, not where a point sits on the map. Time and date are temporal, not spatial. X and Y are Cartesian coordinates used in some map systems, but standard nautical charts rely on latitude and longitude for precise location.

In navigation, a location on a chart is identified by two coordinates: latitude and longitude. Latitude measures how far north or south you are from the equator, while longitude measures how far east or west you are from the prime meridian. Together, they uniquely specify any point on the Earth's surface, and marine charts use these geographic coordinates to show exact positions.

Altitude or depth are vertical measurements, not where a point sits on the map. Time and date are temporal, not spatial. X and Y are Cartesian coordinates used in some map systems, but standard nautical charts rely on latitude and longitude for precise location.