The length of a rectangle is 6 cm and the width is 2 cm. What is the lateral area of the cylinder obtained by rotating it around its length for one revolution?
一个长方形的长是6厘米，宽是2厘米，以它的长为轴旋转一周所得到的圆柱体的侧面积是多少平方厘米．
<gadget id="calculator">3.14 * 2 * 2 * 6</gadget>
<output>75.36</output>

<result>75.36</result>