A cylinder has a base diameter of 5 decimeters and a height of 6 decimeters. What is its lateral area in square centimetres.
一个圆柱底面直径5分米，高6分米．它的侧面积是多少平方分米．
<gadget id="calculator">3.14 * 5 * 6</gadget>
<output>94.2</output>

<result>94.2</result>