A cylindrical drinking glass has a bottom diameter of 10 cm and a height of 6 cm. The amount of beverage poured into it is 80% of the volume of the drinking glass. How many milliliters of beverage is poured into it?
一个圆柱形水杯，底面直径是10厘米，高是6厘米，倒入的饮料是水杯容积的80%，倒入饮料多少毫升．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3.14 * 25 * 6 * (4/5)</gadget>
<output>376.8</output>

<result>376.8</result>