A cylinder has a base radius of 2 cm and a height of 6 cm, what is its surface area in square centimeters?
一个圆柱体的底面半径是2厘米，高是6厘米，它的表面积是多少平方厘米？
<gadget id="calculator">2 * 3.14 * 2 * 6</gadget>
<output>75.36</output>

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

<gadget id="calculator">3.14 * 4 * 2</gadget>
<output>25.12</output>

<gadget id="calculator">75.36 + 25.12</gadget>
<output>100.48</output>

<result>100.48</result>