Let EF touch the circle ABC at B, and let BD be a chord drawn from B, the point of contact. Let BA be the diameter through B, and C any point in the arc of the segment which does not contain A. Construction: Join AD, DC, CB.
Let EF touch the circle ABC at B, and let BD be a chord drawn from B, the point of contact. Let BA be the diameter through B, and C any point in the arc of the segment which does not contain A. Construction: Join AD, DC, CB.