A cylindrical biscuit box has a base diameter of 2 decimeters and a height of 2.5 decimeters, what is its volume in cubic centimeters?
一个圆柱形饼干盒的底面直径是2分米，高是2.5分米，它的容积是多少立方厘米？
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1 * 2.5 * 1_000</gadget>
<output>7_850</output>

<result>7_850</result>