Page 131 - Revised Maths Wisdom Class - 6
P. 131

Playing With Construction                                                                                129

        Now, let us construct this (rectangle) by following the steps given below:

        Step 1:  First of all, we have to draw a side of
                 square AF and it may be of any length.
                 Now  we  sketch  aperpendicular  line
                 FE (i.e. AF ^ FE).

                 Now  put the length for  AF  into                      F                                     E
                 compass  and  keep  the  one  tip  of                                          F
                 compass at point F and cut this
                 perpendicular line FE with the help
                 of this compass. Mark the point E
                 where compass cuts the line  FE
                 which is shown in fig. aside:                          A                       A





                                                    Step 2:  Now according to above arrangement AF = FE
                                                             Similarly, we  put  the  tip  of  compass  of  E  and  cut
                                                             this  extended  line  FE  with  the  help  of  this  compass
                 F                                           at point D. This is also shown in figure below.
                          E               D






                   A

        Step 3:  Now draw two perpendicular lines, one is at point D and perpendicular      F                     D
                 to ED and other is at point A and perpendicular to AF. Put the point C
                 where these two perpendicular lines cuts each other and in this way, a
                 rectangle ‘ACDF’ has been constructed.                                    A                      C


        Construction of Square with a Hole
        Before constructing this, set a rough diagram in your mind. By seeing that you can approach the process.
        According to this diagram, we observed that ‘E’ is the centre of both circle as
        well as rectangle.                                                               D                         C

        Now, Let us construct this by following steps given below.
                                                                                                             F
        Step 1:  First of all, we have to sketch a square ABCD by using only compass
                 and pencil.                                                                            E

                 To do this, we sketch a horizontal line AB after that we construct two
                 perpendicular lines at both ends A and B. Now cut the line segment
                 equal of AB from both perpendicular lines passing through A and B.                 Centre
                                                                                         A                         B
                 In this way, we will construct a square, now draw AC and BD, there are the diagonals of square and
                 where these diagonals cut each other, that point of intersection called centre of square.
   126   127   128   129   130   131   132   133   134   135   136