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SAI International School

                                                       CLASS – VI

           Mathematics

           Chapter-14: Practical Geometry
           Lesson Notes – 6

           Subtopics: Bisector of an angle
               1)  Constructing a copy of an angle of unknown measure

                To construct: A copy of a given angle using only a straight edge and the compasses.
                  Given angle A, whose measure is not known.








               Step 1: Draw a line l and choose a point P on it.



              Step 2:








            Step 3: Use the same compasses setting to draw an arc with P as centre, cutting l in Q.








           Step 4: Set your compasses to the length BC with the same radius.
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