A cylinder has a base radius of 2 cm and a height of 12 cm. What is the lateral area of the cylinder in square centimeters?
一个圆柱的底面半径是2厘米，高是12厘米，这个圆柱的侧面积是多少平方厘米？
<gadget id="calculator">3.14 * 2 * 2 * 12</gadget>
<output>150.72</output>

<result>150.72</result>