Using plasticine as a learning tool, the first cylinder is 15 cm high and the bottom area is 3.2 square centimeters; the second time, the same piece of plasticine is used to make a cone with a height of 8 cm. What is the base area of square centimeters?
用橡皮泥做学具，第一次做的圆柱高是15厘米，底面积是3.2平方厘米；第二次用同一块橡皮泥做一个高是8厘米的圆锥，底面积是多少平方厘米？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">3.2 * 15 * (3/8)</gadget>
<output>18</output>

<result>18</result>