The meridian that passes through Greenwich, England is designated as which of the following?

The meridian that passes through Greenwich, England is designated as which of the following?

• A. 90°
• B. 180°
• C. 0°
• D. 270°

Answer: (C)

Longitudes are measured in degrees east or west from a reference line called the prime meridian. The prime meridian runs through Greenwich, England, and is designated as 0° longitude, serving as the starting point for measuring how far east or west you are around the globe. The far side of the globe is 180°, known as the antimeridian. Other longitudes like 90° or 270° exist, with 270° often expressed as 90° West, but Greenwich is not at those values in standard practice. Therefore, the meridian through Greenwich is the 0° line.

Longitudes are measured in degrees east or west from a reference line called the prime meridian. The prime meridian runs through Greenwich, England, and is designated as 0° longitude, serving as the starting point for measuring how far east or west you are around the globe. The far side of the globe is 180°, known as the antimeridian. Other longitudes like 90° or 270° exist, with 270° often expressed as 90° West, but Greenwich is not at those values in standard practice. Therefore, the meridian through Greenwich is the 0° line.