GCSE Maths (AQA)

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Geometry and measures Mensuration and calculation

Bearings

4:29 measure line segments and angles in geometric figures, including interpreting maps and scale drawings and use of bearings
Spec G15
Previous Using Scale Diagrams Next Area of a Parallelogram
  • A compass is used to describe directions
  • The N represents North, E represents East, S represents South, and W represents West
  • Compasses are useful navigational tools
  • Bearings are angles measured clockwise from North
  • Bearings are always given with three digits
  • When a bearing is more than 180 degrees from North, a protractor is used
  • The angle from zero degrees on the protractor to the line is measured
  • 180 degrees is added to the angle measurement to account for the missing angle from North to South
  • The bearing of the line is determined by adding the measured angle to 180 degrees
  • A practice example is given to measure the bearing of a boat from a lighthouse

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372

questions for Geometry and measures

190

questions for Mensuration and calculation