Definitions [2]
Define latitude.
One of the imaginary circles parallel to the Equator is called latitude.
Define longitude.
Longitude is defined as the angular distance of a place east or west of the Prime Meridian. It is measured in degrees, with a total of 360 degrees of longitude drawn around the Earth, each spaced at one-degree intervals. There are 180 degrees of longitude to the east of the Prime Meridian and 180 degrees to the west.
Key Points
Key Points: Direction
- Cardinal directions are North, South, East and West.
- Bearing is the clockwise angle measured from North.
- FB and BB are forward and backward bearings.
- Magnetic North ≠ True North; the difference is magnetic declination.
- Grid North differs from True North due to map grids.
- Direction of river flow is found using arrows in the river or by comparing heights; rivers flow from higher to lower elevation.
- River banks are identified by facing the direction of flow: right side = right bank, left side = left bank.
