The height from the cone tip to the liquid level is 1 1 cm. The area of the cylinder and the bottom of the cone is equal, so the volume formula shows that the volume of a cone of 6 cm is equal to the volume of a cylinder of 2 cm. (A cylinder with the same bottom area is three times that of a cone) Then the height from the tip of the cone to the liquid level is 7-2+6 = 1 1 (cm). Supplementary note: Because the bottom is a cylinder, the height of the cylinder is 10 cm, so all the cylinders with a liquid level of 7 cm are cylinders. (7 & lt 10)