A cylinder has a base radius of 5 cm and a height of 8 cm, what is its volume in cubic centimeters?
一个圆柱的底面半径是5厘米，高是8厘米，它的体积是多少立方厘米．
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25 * 8</gadget>
<output>628</output>

<result>628</result>