The video tutorial explains how to calculate the volumes of grain silos, which are composed of cylindrical bases and conical tops. It covers the step-by-step process of finding the volume of each part and then combining them to get the total volume. The tutorial also includes a practical application of using the total volume to determine how many people can be fed with the grain stored in the silos.

What shapes make up the grain silos discussed in the video?

• Spheres with cylinders on top

• Cylinders with pyramids on top

• Cubes with cones on top

• Cylinders with cones on top

How many grain silos are being considered in the problem?

• Six

• Twelve

• Ten

• Eight

What is the diameter of the cylindrical part of the silo?

• 3 meters

• 6 meters

• 9 meters

• 12 meters

What is the height of the cylindrical portion of the silo?

• 10 meters

• 2.5 meters

• 16.5 meters

• 14 meters

What is the formula used to calculate the volume of a cylinder?

• 4/3 PI R cubed

• PI R squared

• 2 PI R H

• PI R squared H

What is the exact volume of the cylindrical portion of one silo?

• 126 cubic meters

• 396 cubic meters

• 126 PI cubic meters

• 396 PI cubic meters

What is the approximate volume of the cylindrical portion of one silo to three significant figures?

• 396 PI cubic meters

• 396 cubic meters

• 126 cubic meters

• 126 PI cubic meters

What is the formula for the volume of a cone?

• PI R squared H

• 4/3 PI R cubed

• 1/3 PI R squared H

• 2/3 PI R squared H

What is the height of the conical portion of the silo?

• 10 meters

• 2.5 meters

• 16.5 meters

• 14 meters

What is the exact total volume of one grain silo?

• 133 PI cubic meters

• 126 PI cubic meters

• 133 cubic meters

• 126 cubic meters