19. If one of the angles of a triangle is 110°, then the angle between the
bisectors of the other two angles can be
(a) 70
(b) 65
(c) 75°
(d) 145
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The sum of other two angle is 180-110=70.
The sum of half of other two angle is70/2=35.
Therefore the angle between the bisector of other two angles 180-35=145.
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