Constructing Bisectors of Lines and Angles Geometry Geometric Constructions Constructing Bisectors of Lines and Angles Questions Given: A line segment AC with AB=BC Prove: 1/2AC=BC? In a triangle #DeltaABC#, #AB# and #AC# are extended and bisectors of exterior angles are drawn to intersect at #O#. Find the #m/_CBO#? Geometric Constructions View all chapters Constructing Bisectors of Lines and Angles Constructing Regular Polygons Inscribed in Circles Constructing Circumcircles and Incircles Constructing a Line Tangent to a Circle Next