Geographic coordinate systems use linear units of measure (e.g., meter or foot), not angular units of measure (e.g., degrees or radians).

Geographic coordinate systems use linear units of measure (e.g., meter or foot), not angular units of measure (e.g., degrees or radians).

• A. True
• B. Not Applicable
• C. All of the above
• D. False

Answer: (D)

Geographic coordinate systems specify positions with angular measurements rather than distances. Latitudes and longitudes are angles on the Earth's surface, usually expressed in degrees (and sometimes minutes/seconds). To work with distances or areas in linear units like meters or feet, you convert the data to a projected coordinate system, which maps the curved surface to a flat plane and provides linear units. So the statement is false: geographic coordinate systems use angular units, and linear units come from projected coordinate systems after a transformation. For example, a point at 40°N, 74°W is given in degrees, not meters; to obtain meters you’d project to a system like UTM.

Geographic coordinate systems specify positions with angular measurements rather than distances. Latitudes and longitudes are angles on the Earth's surface, usually expressed in degrees (and sometimes minutes/seconds). To work with distances or areas in linear units like meters or feet, you convert the data to a projected coordinate system, which maps the curved surface to a flat plane and provides linear units. So the statement is false: geographic coordinate systems use angular units, and linear units come from projected coordinate systems after a transformation. For example, a point at 40°N, 74°W is given in degrees, not meters; to obtain meters you’d project to a system like UTM.