The diameter of the inner bottom of a cylindrical container is 6 cm, and the inner height is 8 cm. What is its volume in mL?
一个圆柱形容器的内底直径是6cm，内部高是8cm，它的容积是多少mL．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">3.14 * 9 * 8</gadget>
<output>226.08</output>

<result>226.08</result>