1, (1) How much paper does it take to make the side label of this potato chip cone?

(2) What is the volume of this potato chip cone?

On the construction site, there is a cone-shaped sand pile. The measured bottom diameter is 4m, and the height is1.5m. The weight of sand per cubic meter is about 1.7 tons. How many tons does this pile of sand weigh? (Keep the whole ton as a figure)

3. A cylindrical pool, the wall and bottom of the pool should be inlaid with tiles, the diameter of the pool bottom is 6m, the depth of the pool is 1.2m ... How many square meters is the tile area?

4. As shown in the figure, first fill container A with water, and then pour water into container B. How high is the water in container B? (Unit: cm)

Master Zhang wants to cut a cylindrical piece of wood (as shown on the right) into a cone.

What is the maximum volume of (1) truncated cone?

Please ask a math question and answer it.