Uncle Wang dug a cylindrical lotus pond in his own rectangular field. Its bottom surface is 6 meters in diameter and 1.4 meters high. What is the volume in cubic meters?
王大爷在自己的一块长方形地里挖了一个圆柱形藕池，它的底面直径是6米，高1.4米．体积是多少立方米？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">3.14 * 9 * 1.4</gadget>
<output>39.564</output>

<result>39.564</result>