The lateral area of a cylinder is 251.2 square centimeters, and its height is 5 centimeters. What is its surface area in square centimeters?
一个圆柱的侧面积是251.2平方厘米，高是5厘米，它的表面积是多少平方厘米．
<gadget id="calculator">251.2 / 5</gadget>
<output>50.24</output>

<gadget id="calculator">50.24 / 3.14 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3.14 * 64 * 2</gadget>
<output>401.92</output>

<gadget id="calculator">401.92 + 251.2</gadget>
<output>653.12</output>

<result>653.12</result>