Cut a cylindrical stick with a height of 30cm into two pieces and add 12.56 square centimeters. What is the volume of the stick?
把一个高为30cm圆柱形的木棍切成两段，增加12.56平方厘米，这根木棍的体积是多少．
<gadget id="calculator">12.56 / 2</gadget>
<output>6.28</output>

<gadget id="calculator">6.28 * 30</gadget>
<output>188.4</output>

<result>188.4</result>