Page 271 - Start Up Mathematics_7
P. 271

4.  Make the corresponding oblique sketches for the isometric sketches given below.








                  (a)                                                      (b)











               5.  Draw an isometric sketch of the given oblique shape.

                  Is the isometric sketch unique?





            Visualizing Solid Objects

            When you visualize a solid object, it is not necessary that whole of it can be seen. The view of the
            solid may also depend upon the direction or side from where it is seen. Moreover, in combined
            shapes some part of the solid may be hidden from the view.                               Top
            Let’s take some cubes and arrange them as shown in the figure.

            Can you guess how many cubes are required to make this structure.
            A little thinking will give you the answer. Yes, it is 7. One can look at this
            combination from the front, side or the top. Each time we get a different view.      Front   Side

            The three views are shown in the following grid paper.













                                    Front view              Side view               Top view
            Example 3:  For the solids given below sketch the front, side and top view.
                                                                            Top
                                           Top




                          (a)                          Side   (b)                         Side

                               Front

                                                                   Front


                                                                                                            263
   266   267   268   269   270   271   272   273   274   275   276