It is known that the lateral area of a cylinder is 94.2cm**2 and the volume is 235.5cm**3. Find the area of the base of this cylinder.
已知一个圆柱体的侧面积是94.2cm**2，体积为235.5cm**3．求这个圆柱体的底面积．
<gadget id="calculator">94.2 / 2</gadget>
<output>47.1</output>

<gadget id="calculator">235.5 / 47.1</gadget>
<output>5</output>

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

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

<result>78.5</result>