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SAI International School


                                                 Sub – Mathematics

                                                      Class - IV


                                                 Topic – Geometry

        Sub-topic 8 :- Construction of circle.


              Draw a circle of radius 4 cm with the help of compass.
              Step 1 – Fix a sharp pencil in the pencil holding arms of the compass firmly.
              Step 2 – Fix the metal tip of the compass on the ruler at 0and open out the compass in
               such a way that its tip rests on 4 cm mark on the ruler.
              Step 3 – Mark a point O on the plane of the paper. Rest the metal tip of the compass firmly
               at O.
              Step 4 – Now hold the head of the compass firmly and move the pencil point around to
               trace a circle of radius 4 cm.


















               Important note
               Diameter = 2x radius
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