The volume of a cylinder is 942dm**3, the height is 20dm, what is the area of the bottom dm**3.
一个圆柱的体积是942dm**3，高是20dm，底面积是多少dm**3．
<gadget id="calculator">942 / 20</gadget>
<output>471/10 = around 47.1</output>

<result>471/10 = around 47.1</result>