PROBLEM SOLVING: Read and analyze each item below, choose any two problems, then solve for what is being asked. Show your COMPLETE solution together with its corresponding illustration. Round off your final answer to the nearest fourth decimal place and encircle your final answer.

With the "Build Build Build" project of the government, a lot of road works are being implemented. One is the road widening near Naguilian Road. At the initial phase of the project a hole was dug in the form of a frustum of a pyramid. Given that the top part of the frustum is square in shape with side measuring 3.2 meters, the bottom part of the frustum is also square in shape with a side measuring 1.8 meters, and the depth of the hole is 2 meters, how many cubic meters of earth were removed from the hole?