A cylinder, a cylinder, if the radius of the base increases by 2 cm, its lateral area increases by 62.8 square meters. If the circumference of its base increases by 2 cm, how many square centimeters does its lateral area increase?
一个圆柱体，一个圆柱体，底面半径增加2厘米，它的侧面积就增加62.8平方米，如果它的底面周长增加2厘米，那么它的侧面积就增加多少平方厘米？
<gadget id="calculator">2 * 2 * 3.14</gadget>
<output>12.56</output>

<gadget id="calculator">62.8 / 12.56</gadget>
<output>5</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<result>10</result>