Bisect Angle with Compass and Straight Edge

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

Steps

  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.