If a rectangle with a length of 5 cm and a width of 2 cm is rotated around the axis of the long side, what is the surface area of the three-dimensional figure obtained?
一个长5厘米，宽2厘米的长方形，以长边所在的直线为轴旋转一周，所得立体图形的表面积是多少？
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">2 * 3.14 * 25</gadget>
<output>157</output>

<gadget id="calculator">2 * 3.14 * 5 * 2</gadget>
<output>62.8</output>

<gadget id="calculator">157 + 62.8</gadget>
<output>219.8</output>

<result>219.8</result>