A cylinder has a lateral area of 157dm**2 and a height of 5dm. What is the volume of this cylinder dm**3?
一个圆柱体侧面积是157dm**2，高是5dm．这个圆柱体体积是多少dm**3？
<gadget id="calculator">157 / 5 / 3.14 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">3.14 * 25 * 5</gadget>
<output>392.5</output>

<result>392.5</result>