Calculate bearings, arcs and sectors

Press these keys

Walkthrough

1. 1
   Sketch first

   Mark north lines and clockwise three-figure bearings; identify the central angle.

2. 2
   Use consistent units

   For s=rθ and A=½r²θ, θ must be in radians.

3. 3
   Evaluate and label

   Calculate, then state length or area units.

Worked example