A cylinder whose base diameter and height are both 6 cm, what is its lateral area in square centimeters?
一个圆柱体，底面直径和高都是6厘米，它的侧面积是多少平方厘米．
<gadget id="calculator">3.14 * 6 * 6</gadget>
<output>113.04</output>

<result>113.04</result>