7. A cone of radius 6m and height 3m has volume 367 m3. A cone of radius 3m and height 12m has the same volume. Both cones are oriented so that the point is up. The cone of radius 6m is built out of chocolate of density 1325 kg/m³. The cone of radius 3 m is built out of marshmallow of density 500 kg/m3. Determine which takes more work to build by finding the work to build each. Be sure to include units.

7. A cone of radius 6m and height 3m has volume 367 m3. A cone of radius 3m and height 12m has the same volume. Both cones are oriented so that the point is up. The cone of radius 6m is built out of chocolate of density 1325 kg/m³. The cone of radius 3 m is built out of marshmallow of density 500 kg/m3. Determine which takes more work to build by finding the work to build each. Be sure to include units.