The volume of one cone is 62.4 cubic centimeters, which is four times the volume of the other cone. If the height of another cone is 2.5 cm, what is the area of the base of this cone?
一个圆锥的体积是62.4立方厘米，它的体积是另一个圆锥的4倍．如果另一个圆锥的高是2.5厘米，这个圆锥的底面积是多少．
<gadget id="calculator">62.4 / 4</gadget>
<output>15.6</output>

<gadget id="calculator">15.6 / 2.5</gadget>
<output>6.24</output>

<gadget id="calculator">3 * 6.24</gadget>
<output>18.72</output>

<result>18.72</result>