Answer: The required approximate volume of the given cone is 508.68 cm³.
Step-by-step explanation: We are given to find the approximate volume of the cone shown in the figure.
The VOLUME of a cone with radius of the base r units and height h units is given by

For the given cone, we have
r = 9 cm and h = 6 cm.
Therefore, the VOLUME of the given cone is

Thus, the required approximate volume of the given cone is 508.68 cm³.