When we draw bearings, we need to remember the three main rules.
- Bearings are measured from North
- Bearings are measured clockwise
- Bearings must have three figures.
It is incredibly rare that a question on bearings will be draw an individual bearing. Most of the questions will pull in multiple topics.
Example 1: Draw a bearing of 050.
Step 1: Draw a line directly up, this is the north line that you will measure from. Label this N.
Step 2: Place your protractor on this line with the North line lined up with zero on your protractor and the numbers going clockwise.
Step 3: Measure out the angle, a bearing of 050 is 50° on your protractor.
Step 4: Draw a line for the bearing and label the angle.
Example 2: B is on a bearing of 040 from A at a distance of 4cm. C is on a bearing of 130 from B at a distance of 6cm. Draw the bearing and measure the distance AC.
Step 1: The first bearing is from A so we draw a bearing of 050 from there.
Step 2: Draw another north line at B and measure the bearing of 130 from there.
Step 3: Draw a line and measure from A to C.
In this question, AC = 7.3cm. Don’t forget that you will get a margin of error if you are measuring. In this question, you would get the marks if you measured it as between 7.1 and 7.5 cm.
Example 3: B is 6cm directly east of A. Point C is 4cm from A and 5cm from point B. Draw a diagram and measure the bearing of C from A.
Step 1: We know that B is 6cm east from A, we can draw and label this.
Step 2: Use a compass to show all the points that are 4cm from A
Step 3: Use a compass to show all the points that are 5cm from B. The intersection of these two lines is point C
Step 4: Draw a north line at A, a line from A to C and measure the bearing