Bearings
Presentation
•
Mathematics
•
10th - 12th Grade
•
Hard
Claire Kirton
Used 36+ times
FREE Resource
16 Slides • 0 Questions
1
Bearings
North-East-South-West
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Measure from North
Always measure from North
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Measure your bearing clockwise
Not anticlockwise please!!!
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Bearings are always given with 3 figures
Not one or two. Like the 3 musketeers - they stick together.
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Help! I've got a bearings question. What do I do?
Follow this handy guide to find your bearings.
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Example
A snail travels 5metres on a bearing of 067°. Find how far east he is from his starting point.
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Step one
Draw a line facing north
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Draw an arrow in the direction of interest
If you are asked for an accurate drawing, you will need your protractor and compass - otherwise a rough sketch is fine.
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Label your diagram with the information you have been given.
angle and distance please.
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Draw a line from the point of your arrow to your north line
Not so bad, is it?
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Figure out which Trig function will help you...
???
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Our angle is opposite our length of interest so we need...
Sin
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Apply your trig
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So our snail is 4.6 metres east of his start position.
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Bearings
North-East-South-West
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