A cylinder has a base diameter of 6 cm and a height of 10 cm, what is its lateral area?
一个圆柱的底面直径是6cm，高是10cm，它的侧面积是多少？
<gadget id="calculator">3.14 * 6 * 10</gadget>
<output>188.4</output>

<result>188.4</result>