To build a cylindrical goldfish pond with a diameter of 6 meters and a depth of 0.8 meters, what is the volume of the goldfish pond in cubic meters?
要建一个直径为6米，深0.8米的圆柱形金鱼池，这个金鱼池的容积是多少立方米？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">3.14 * 9 * 0.8</gadget>
<output>22.608</output>

<result>22.608</result>