PLEASE HELP DUE IN A COUPLE OF MINUTES A farmer stacked hay bales on top of each other. The length and width of a single hay bale are: Width - 1 1/3 ft. Length- 4ft

The volume of each hay bale is 10 2/3 cubic feet.
The farmer stacked eight hay bales on top of one another.
How tall would the stack of hay bales be? Explain how you know and use at least 4 vocab words from here: net, polyhedron, face, edge, vertex, cube, unit cube, area, surface area, base

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)