The geometry of mathematics in the second volume of the first day of junior high school
In triangle ABC, angle A=96 degrees, BC is extended to point D, the bisector of angle ABC and angle ACD intersects at point A 1, the bisector of angle A 1BC intersects at A2, and so on. The bisector of angle A4CD and angle A4BC intersects A5, so what is the degree of angle A5? a 1 = 96/2 = 48 A2 = 48/2 = 24 A3 = 24/2 = 12 A4 = 12/2 = 6 A5 = 6/2 = 3