A cylindrical bucket without a lid has a base radius of 4 decimeters and a height of 6 decimeters. If it is used to hold water, how many kilograms of water can it hold? (Weighs 1 kg per liter of water)
一个圆柱形的无盖水桶，从里面量得底面半径4分米，高6分米，如果用来装水，可以装多少千克水？(每升水重1千克)
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16 * 6 * 1</gadget>
<output>301.44</output>

<result>301.44</result>