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E:\Working\Focus_Learning\Math_Genius_2_(09-10-2023)\Open_Files\Chap_08
               \ 17-Nov-2023  Bharat Arora   Proof-6                                    Reader’s Sign _______________________ Date __________






               Sphere: The figure given below is a sphere.                    Some spherical objects are

                                        •  A sphere has one curved  shown below.

                                            face.
                                        •  It does not have any edge

                                            or vertex.




                    activity
               touch and tell. Who am I?
               Place different wooden solid  shapes  or objects with  variation  in

               faces,  corners  and  edges.  Blindfold  a  child  and  ask  them  to pick
               an object as per the details given by other children.
               For example, a student may be asked to take out an object with
               one corner.
               Similarly, continue with other objects with another student.




                       Think and Answer
                    Name the objects which have:

                    1.  no corners      2.  1 corner        3.  2 edges         4.  6 faces

                       Practice time 8c



              1.  Look at your surroundings and name:

                   (a)  one cubical object.              _______  (b)  one spherical object.  _______

                   (c)  one cylindrical object.          _______  (d)  one cuboidal object.               _______

              2.  How many faces, vertices and edges do these solid shape have?


                      Solid shape           Cube          Cuboid           Cone          Cylinder         Sphere







                          Faces

                        Vertices

                         edges






              Mathematics-2                                                                                         145
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