Make a cone with a base radius of 10 cm and a height of 30 cm. This cone can accommodate approximately how many centimeters**3 of sand.
做一个底面半径为10厘米，高为30厘米的圆锥，此圆锥大约可以容纳多少厘米**3的沙子．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">(1/3) * 3.14 * 100 * 30</gadget>
<output>3_140</output>

<result>3_140</result>