cylinder has a base area of 12.56m**2 and a height of 3m, what is its volume in m**3.
一个圆柱的底面积是12.56m**2，高是3m，它的体积是多少m**3．
<gadget id="calculator">12.56 * 3</gadget>
<output>37.68</output>

<result>37.68</result>