There is a container with a cylinder at the bottom and a cone at the top. Their bottom areas are the same. The height of the cylinder is 8 cm, the circumference of the bottom surface is 18.84 cm, and the height of the cone is 6 cm. The depth of water in the container is 7 cm. When the container is turned upside down, what is the height from the tip of the cone to the liquid level?
有一个下面是圆柱体、上面是圆锥体的容器，它们的底面积相同，圆柱的高是8厘米，底面周长是18.84厘米，圆锥的高是6厘米．容器内水深7厘米，将这个容器倒过来放时，从圆锥的尖到液面的高是多少？
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9</gadget>
<output>28.26</output>

<gadget id="calculator">28.26 * 7</gadget>
<output>197.82</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 28.26 * 6</gadget>
<output>56.52</output>

<gadget id="calculator">197.82 - 56.52</gadget>
<output>141.3</output>

<gadget id="calculator">141.3 / 28.26</gadget>
<output>5</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<result>11</result>