Which of the following best describes longitude?
A
An imaginary line joining north and south poles
B
The distance between a place east or west of the Greenwich Meridian
C
The angular distance east or west of the Greenwich meridian
D
The position of a place on earth's surface with reference to the Prime Meridian
Correct Answer: The angular distance east or west of the Greenwich meridian
It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). The longitude of other places is measured as the angle east or west from the Prime Meridian, ranging from 0° at the Prime Meridian to +180° eastward and −180° westward.