If the height of a cylinder is 7.5 decimeters and the radius of the base is 10 centimeters, what is its volume in cubic centimetres?
一个圆柱的高是7.5分米，底面半径是10厘米，它的体积是多少立方厘米．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">7.5 * 10</gadget>
<output>75</output>

<gadget id="calculator">3.14 * 100 * 75</gadget>
<output>23_550</output>

<result>23_550</result>