Given that c=12.56cm and h=4.5dm, find the volume of this cylinder.
已知c=12.56cm，h=4.5dm，求这个圆柱体的体积．
<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 * 4.5 * 10</gadget>
<output>565.2</output>

<result>565.2</result>