A cylinder, if its height increases by 2 meters, its surface area increases by 50.24 square meters, what is the area of the base of this cylinder in square meters?
一个圆柱，如果它的高增加2米，它的表面积就增加50.24平方米，这个圆柱的底面积是多少平方米？
<gadget id="calculator">50.24 / 2 / 3.14 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<result>50.24</result>