A conical pile of wheat has a base radius of 50 decimeters and a height of 45 decimeters. What is the volume of this pile of wheat in cubic decimeters?
一个圆锥形小麦堆，底面半径是50分米，高是45分米，求这堆小麦的体积是多少立方分米？
<gadget id="calculator">50 ** 2</gadget>
<output>2_500</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3.14 * 2_500 * 45 * (1/3)</gadget>
<output>117_750</output>

<result>117_750</result>