Table 8: The corresponding   platforms for poles of different lengths.

No. (m)Ratio of the lengths of polesThe starting value of     platform The finishing value of     platform The width of     platform

10.110.1750.980.805
20.1491.490.220.980.76
30.1991.990.2350.980.745
40.2662.660.250.9750.725
50.3543.540.260.9550.695
60.44364.4360.270.940.67
70.5535.530.2750.940.665
80.6916.910.2850.940.655