A cylinder has a base radius of 5 meters and a volume of 157 cubic meters, what is its height in meters?
一个圆柱的底面半径是5米，体积是157立方米，它的高是多少米．
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25</gadget>
<output>78.5</output>

<gadget id="calculator">157 / 78.5</gadget>
<output>2</output>

<result>2</result>