Trisecting a Circle

1
Trisecting a Circle

• An Investigation

2

• Trisecting a Circle
• The diagram shows a circle of radius r.
• Two parallel chords (shown in the diagram) divide
  the circle into three equal areas A,B and C
• Show that the length L of the chords is given
• by L 1.93r and that the chords are
  approximately 0.26r from the centre of the
  circle.