Page 212 - New Medley 4 Semester 1
P. 212

D.  Draw the circle using a pair of compasses for each of the given radii.
                     1.  4 cm                  2.  6 cm                3.  5 cm 5 mm           4.  4.8 cm

                     Also, measure its diameter.


                 E.  Draw the circle whose diameter is given below.
                     1.  10 cm                 2.  16 cm               3.  12 m                4.  15 m


                 F.  Draw a  circle in  free  hand.  Draw its  one diameter. Shade its  semi-circles
                     differently.

                G.  Can you tell  the diameter and the radius  of circles  in  the following

                     figures?



                     1.                                                  2.


                                      9 cm

                                                                                     20 cm
                          Diameter =                                         Diameter =
                             Radius =                                           Radius =


                H.  Fill in the blanks.
                     1.  The longest chord of a circle is called                                 of the circle.

                     2.  The boundary of a circle is called its                               .

                     3.  The fixed point from which every point on the circle is at equal distance
                          is called the                       of the circle.
                     4.  The                       of a circle is half of its diameter.

                     5.  All the radius of a circle are of                              length.


                                                             PUZZLE                                       • Critical Thinking



               How many circles are there in this design?

               Can you count  the  number  of  coloured  leaves?




               Make your own circular designs using coins, bangles,

               a pair of compasses, etc.





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