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17.1 Using bearings
17.1 Using bearings
A bearing describes the direction of one object from another.
It is an angle measured from north in a clockwise direction.
A bearing can have any value from 0° to 360°. It is always written with three $gures.
In this diagram the bearing N In this diagram the bearing N
from A to B is 120°. from A to B is 065°.
B
65°
120°
A A
B
Worked example 17.1
The diagram shows three towns, A, B and C. A
a Write down the bearing of B from A.
b Write down the bearing from A to C. B
c Write down the bearing of B from C. C
a Draw a north arrow from A, and b Draw a north arrow from A, c Draw a north arrow from C,
a line joining A to B. Measure and a line joining A to C. and a line joining C to B.
the angle from the north arrow Measure the angle from the Measure the angle from the
clockwise to the line joining A to B. north arrow clockwise to the north arrow clockwise to the
N line joining A to C. line joining C to B.
N N
130°
A 80° B
A C
210°
B
C
The bearing is 130°. The bearing is 210°. The bearing is 080°.
) Exercise 17.1
1 For each diagram, write down the bearing of B from A.
a N b N c N d N
B
B
A A A A
B
B
17 Bearings and scale drawing 159
