A cylinder has a volume of 157cm**3 and a base radius of 2.5cm. How many centimeters is it high?
一个圆柱的体积是157cm**3，底面半径2.5cm．它的高是多少厘米？
<gadget id="calculator">2.5 ** 2</gadget>
<output>6.25</output>

<gadget id="calculator">3.14 * 6.25</gadget>
<output>19.625</output>

<gadget id="calculator">157 / 19.625</gadget>
<output>8</output>

<result>8</result>