The area of the bottom is 12.56 square decimeters and the height is 6 decimeters. What is the side area?
底面面积12.56平方分米，高6分米，侧面积是多少．
<gadget id="calculator">2 * 3.14 * 2 * 6</gadget>
<output>75.36</output>

<result>75.36</result>