cylindrical glass container has a radius of 3 cm at the bottom of the inner wall and a height of 30 cm. How many milliliters of water can this glass container hold?
一个圆柱形玻璃容器，内壁底面半径是3厘米，高是30厘米，这个玻璃容器最多能装多少毫升水．
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 30</gadget>
<output>847.8</output>

<result>847.8</result>