A cylindrical gasoline barrel has a radius of 4 decimeters measured from the inside and a depth of 8 decimeters. If each liter of gasoline weighs 0.75 kg. How many kilograms of gasoline can this gasoline barrel hold?
一个圆柱形汽油桶，从内部量得它的底面半径是4分米，深8分米．如果每升汽油重0.75千克．这个汽油桶可装汽油多少千克？
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16 * 8</gadget>
<output>401.92</output>

<gadget id="calculator">401.92 * 0.75</gadget>
<output>301.44</output>

<result>301.44</result>