Vectors, Bearings and Grid References

Task goals

• Read and state three-figure bearings from a diagram, plot points using grid references, and write a simple displacement as a column or component vector.
• Use trigonometric ratios and Pythagoras' theorem to calculate the distance and bearing between two points given as vector components or grid coordinates.
• Solve multi-step navigation or surveying problems that combine vector addition, changes of bearing, and right-angled trigonometry to find a resultant position, distance or angle.