The side view of a cylinder is a square. It is known that the area of a base circle is 5 square centimeters. What is the surface area of this cylinder in square centimeters?
一个圆柱体的侧面展开图是一个正方形，已知它的一个底面圆面积是5平方厘米，这个圆柱的表面积是多少平方厘米．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">20 * 3.14</gadget>
<output>62.8</output>

<gadget id="calculator">10 + 62.8</gadget>
<output>72.8</output>

<result>72.8</result>