A cylindrical iron rod has a base circumference of 18.84 cm and a length of 150 cm. What is its volume?
一根圆柱形铁棒，底面周长是18.84厘米，长是150厘米，它的体积是多少？
<gadget id="calculator">18.84 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 150</gadget>
<output>4_239</output>

<result>4_239</result>