Bisect Angle with Compass and Straight Edge

This video shows how to divide an angle into two equal parts.


  1. First pick any point along the two rays
  2. Using a compass positioned at the vertex of the angle and point from step one draw a circle to find another point equally position from the vertex.
  3. Then position the compass at one point and draw a circle using the other point as the radius
  4. Repeat for the second point.
  5. The point where the two circles intersect perfectly divides the angle in half.