Bearings
RevisionNotes.Co.Uk - Free Revision and Course Notes for UK Students
 
Home : GCSE : Maths : Trigonometry : Bearings
 Revision Notes
 GCSE
 A-Level
 University
 IB
 User Options
 Search
 My Revision Notes
 Bookmark Page
 Contribute
 Contribute Work
 Other Sites
 AcademicDB
 Coursework.Info

Bearings
Bookmark this page

Bearings
A bearing is the angle, measured clockwise from the north direction. Below, the bearing of B from A is 025 degrees (note 3 figures are always given). The bearing of A from B is 205 degrees.

 

Example:
A, B and C are three ships. The bearing of A from B is 045º. The bearing of C from A is 135º. If AB= 8km and AC= 6km, what is the bearing of B from C?

tanC = 8/6, so C = 53.13º
y = 180º - 135º = 45º (interior angles)
x = 360º - 53.13º - 45º (angles round a point)
  = 262º (to the nearest whole number)

© Matthew Pinkey

Other Notes in this Category

  1. Bearings
  2. Congruency
  3. Intercept Theorem
  4. Pythagoras' Theorem
  5. Similar Triangles
  6. Sin, Cos and Tan
  7. Sine and Cosine Formulae

Didn't find this useful?

  • Visit Coursework.Info for over 14,000 GCSE, A-Level and University Essays

 

© UK-Learning 2001-3. Disclaimer, Feedback, Other Stuff.