Angle Trisection by Quadratrix
Explanation and Instructions
Segment moves from initial position at segment to final position at segment as point moves from initial position at point to final position at point To perform these actions, press the play button in the lower-left corner of the applet. The curve traced by point is the quadratrix. Press the pause button to stop the movements.
To trisect segment has been constructed so that Drag point until ray passes through the point of intersection of segment and the quadratrix. The measure of should be one-third the measure of
Proof: