More Geometry


the angle properties of parallel lines include corresponding, alternate and co-interior angles.

the exterior angles of any polygon add up to 360°.

compass bearings such as sw and ne and true bearings such as 090°.

Key Skills

  • work out a true or compass bearing from a diagram.
  • change a compass bearing to a true bearing.
  • change a true bearing to a compass bearing.
  • calculate the sizes of interior and exterior angles of common regular polygons.


compass bearing, true bearingpolygon, regular polygon, exterior angle, interior angle, equilateral trianglesquarepentagon,hexagonoctagon, decagon.