If the circumference of the base of the cylinder is 12.56 meters and the height is 2 meters, what is its volume in cubic meters?
如果圆柱的底面周长为12.56米，高为2米，那么它的体积是多少立方米．
<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 2</gadget>
<output>25.12</output>

<result>25.12</result>