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The direction to a point is stated as the number of degrees east or
west of north or south.
For example, the direction of A from O is N30ºE.
B is N60ºW from O.
C is S70ºE from O.
D is S80ºW from O.
Note:
N30ºE means the direction is 30º east of north.
The bearing to a point is the angle measured in a clockwise
direction from the north line.
For example, the bearing of P from O is 065º.
The bearing of Q from O is 300º.
Note:
The direction of P from O is N65ºE.
The direction of Q from O is N60ºW.
A bearing is used to represent the direction of one point relative
to another point.
For example, the bearing of A from B is 065º.
The bearing of B from A is 245º.
Note:
- Three figures are used to give bearings.
- All bearings are measured in a horizontal plane.
Example 19
A boat sails from a certain port in the direction N30ºW. After the
boat has sailed 20 km, how far is it west of the port?
Solution:
Let the boat be x km west of the port.
So, the boat is 10 km west of the port.
Example 20
A cyclist travels 10 km south, then 8 km east. Find the cyclist's
bearing from her starting point to the nearest degree.
Solution:
So, the cyclist's bearing is 141º from her starting point.
Key Terms
direction, bearing
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